As filed with the Securities and Exchange Commission on August 23, 2005

                                                               Registration No. 
________________________________________________________________________________

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                 _______________
                                    FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                                ________________
                                   SPIRENT PLC
             (Exact name of registrant as specified in its charter)

       England and Wales                                  None
(State or other jurisdiction of            (I.R.S. Employer Identification No.)
 incorporation or organization)                      

                                  Spirent House
                            Crawley Business Quarter
                              Fleming Way, Crawley
                              West Sussex RH10 9QL
                                 United Kingdom
           (Address of Principal Executive Offices including Zip Code)

                          Spirent Stock Incentive Plan
                        (f/k/a Spirent Stock Option Plan)
                            (Full title of the Plan)


                                   Frank Pizzi
                                   Spirent Inc
                         1300 Veterans Memorial Highway
                            Hauppauge, New York 11788
                                 (631) 851 3660
            (Name, address and telephone number of agent for service)

                         CALCULATION OF REGISTRATION FEE
________________________________________________________________________________

                                  Proposed
Title of                          maximum      
securities                        offering       Proposed maximum  Amount of
to be            Amount to be     price per      aggregate         registration
registered       registered       unit           offering price    fee
__________       _____________    ___________    ________________  ____________ 
Ordinary         20,000,000(2)    $0.97555(3)    $19,511,000(3)    $2,296.45
Shares(1)

________________________________________________________________________________

(1)      The ordinary shares (31/3 pence nominal value per share) ("Ordinary 
         Shares") of Spirent plc (the "Company") being registered hereunder will
         be offered pursuant to the Spirent Stock Incentive Plan (f/k/a the 
         "Spirent Stock Option Plan") (the "Plan").  Awards of Ordinary Shares 
         under the Plans may be delivered in the form of American Depositary 
         Shares of the Company ("ADSs"), which will be represented by American 
         Depositary Receipts ("ADRs").
(2)      Such indeterminate number of additional Ordinary Shares as may be 
         distributed by the operation of the recapitalization provisions of the 
         Plan is hereby also registered.
(3)      Computed pursuant to Rule 457(h) solely for the purpose of determining 
         the registration fee, based upon (i) the average of the high and low 
         market price per Ordinary Share on the London Stock Exchange on August 
         18, 2005 of GBP0.545 U.K. Pounds Sterling ("Pounds") per Ordinary Share
         and (ii) the conversion ratio of Pounds to U.S. Dollars of GBP1.00 = 
         $1.79, which was the conversion ratio on August 18, 2005, as reported 
         in the Financial Times.





                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS

 Information required by Part I to be contained in the Section 10(a) prospectus
 is omitted from this Registration Statement in accordance with Rule 428 under
the Securities Act, as amended (the "Securities Act"), and the "Note" to Part I
                                  of Form S-8.

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.           Incorporation of Documents by Reference

                  Incorporated by reference in this Registration Statement are 
the following documents heretofore filed with or furnished to the Securities and
Exchange Commission (the "Commission") by Spirent plc (the "Registrant" or the 
"Company") pursuant to the Securities Exchange Act of 1934, as amended (the 
"Exchange Act"):

                  (a)      The Company's annual report on Form 20-F filed with 
                           the Commission on May 18, 2005 under the Exchange Act
                           containing audited financial statements for the 
                           Company's latest fiscal year;

                  (b)      The Company's report on Form 6-K furnished to the 
                           Commission on August 11, 2005 under the Exchange Act
                           containing interim financial statements for the first
                           half of 2005;

                  (c)      All other reports filed by the Company pursuant to 
                           Section 13(a) or 15(d) of the Exchange Act since the 
                           end of the fiscal year covered by the annual report 
                           referred to in (a) above; and

                  (d)      The description of the Company's Ordinary Shares set 
                           forth in the Company's registration statement on Form
                           20-F filed with the Commission on June 27, 2001, and 
                           the description of American Depositary Receipts 
                           ("ADRs") relating to the Ordinary Shares set forth 
                           therein, including any amendment or report filed for 
                           the purpose of updating such descriptions.

                  All documents subsequently filed by the Company pursuant to 
Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, prior to the filing of a
post-effective amendment that indicates that all securities offered hereby have 
been sold or that deregisters all such securities then remaining unsold, shall 
be deemed to be incorporated by reference in this Registration Statement and to 
be part hereof from the dates of filing of such documents.

Item 4.           Description of Securities

                  Not applicable.

Item 5.           Interests of Named Experts and Counsel

                  None.

Item 6.           Indemnification of Directors and Officers

                  Article 144 of the Company's Articles of Association provides:

                  (1)      Subject to the provisions of and so far as may be 
       consistent with the Statutes, every Director, Secretary or other officer 
       of the Company shall be entitled to be indemnified by the Company against
       all costs, charges, losses, expenses and liabilities incurred by him in 
       the execution and/or discharge of his duties and/or the exercise of his 
       powers and/or otherwise in relation to or in connection with his duties, 
       powers or office including (without prejudice to the generality of the 
       foregoing) any liability incurred by him in defending any proceedings, 
       civil or criminal, which relate to anything done or omitted or alleged to
       have been done or omitted by him as an officer or employee of the Company
       and in which judgment is given in his favour (or the proceedings are 
       otherwise disposed of without any finding or admission of any material 
       breach of duty on his part) or in which he is acquitted or in connection 
       with any application under any statute for relief from liability in 
       respect of any such act or omission in which relief is granted to him by 
       the Court.

                  (2)      Without prejudice to paragraph (A) of this Article 
       the Directors shall have the power to purchase and maintain insurance for
       or for the benefit of any persons who are or were at any time Directors, 
       officers or employees of any Relevant Company (as defined in paragraph 
       (C) of this Article) or who are or were at any time trustees of any 
       pension fund or employee share scheme in which employees of any Relevant 
       Company are interested, including (without prejudice to the generality of
       the foregoing) insurance against any liability incurred by such persons 
       in respect of any act or omission in the actual or purported execution 
       and/or discharge of their duties and/or in the exercise or purported 
       exercise of their powers and/or otherwise in relation to their duties, 
       powers or offices in relation to any Relevant Company, or any such 
       pension fund or employee share scheme.

                  (3)      For the purpose of paragraph (B) of this Article 
       "Relevant Company" shall mean the Company, any holding company of the 
       Company or any other body, whether or not incorporated, in which the 
       Company or such holding company or any of the predecessors of the Company
       or of such holding company has or had any interest whether direct or 
       indirect or which is in any way allied to or associated with the Company,
       or any subsidiary undertaking of the Company or of such other body.

                  The relevant provision of the Companies Act 1985 is Section 
310, which provides:

                  (1)      This section applies to any provision, whether 
       contained in a company's articles or in any contract with the company or 
       otherwise, for exempting any person (whether an officer or not) employed 
       by the company as auditor from, or indemnifying him against, any 
       liability which by virtue of any rule of law would otherwise attach to 
       him in respect of any negligence, default, breach of duty or breach of 
       trust of which he may be guilty in relation to the company.

                  (2)      Except as provided by the following subsection, any 
                  such provision is void.

                  (3)      This section does not prevent a company-

                           (a)      from purchasing and maintaining for any such
                  auditor insurance against any such liability, or

                           (b)      from indemnifying any such auditor against 
                  any liability incurred by him-

                                    (i)     in defending any proceedings 
                           (whether civil or criminal) in which judgment is 
                           given in his favour or he is acquitted, or

                                    (ii)    in connection with any application 
                           under section 727 (general power to grant relief in
                           case of honest and reasonable conduct) in which 
                           relief is granted to him by the court.

                  Section 727 of the Companies Act 1985 provides:

                  (1)      If in any proceedings for negligence, default, breach
       of duty or breach of trust against an officer of a company or a person 
       employed by a company as auditor (whether he is or is not an officer of 
       the company) it appears to the court hearing the case that that officer 
       or person is or may be liable in respect of the negligence, default, 
       breach of duty or breach of trust, but that he has acted honestly and 
       reasonably, and that having regard to all the circumstances of the case 
       (including those connected with his appointment) he ought fairly to be 
       excused for the negligence, default, breach of duty or breach of trust, 
       that court may relieve him, either wholly or partly, from his liability 
       on such terms as it thinks fit.

                  (2)      If any such officer or person as above-mentioned has 
       reason to apprehend that any claim will or might be made against him in 
       respect of any negligence, default, breach of duty or breach of trust, he
       may apply to the court for relief, and the court on the application has 
       the same power to relieve him as under this section it would have had if 
       it had been a court before which proceedings against that person for 
       negligence, default, breach of duty or breach of trust had been brought.

                  (3)      Where a case to which subsection (l) applies is being
       tried by a judge with a jury, the judge, after hearing the evidence, may,
       if he is satisfied that the defendant or defender ought in pursuance of 
       that subsection to be relieved either in whole or in part from the 
       liability sought to be enforced against him, withdraw the case in whole 
       or in part from the jury and forthwith direct judgment to be entered for 
       the defendant or defender on such terms as to costs or otherwise as the 
       judge may think proper.

                  In addition, the Company has obtained directors' and officers'
liability insurance coverage, which includes coverage to reimburse the Company 
for certain amounts which it may be required or permitted by law or its Articles
of Association to pay directors or officers in respect of claims made against 
those directors or officers.

Item 7.           Exemption from Registration Claimed

                  Not applicable.

Item 8.           Exhibits

                  An Exhibit Index, containing a list of all exhibits filed with
this Registration Statement, is included on page 9.

Item 9.           Undertakings

                  (a)      Rule 415 Offering.  The undersigned Registrant hereby
undertakes:

                  (1)      To file, during any period in which it offers or 
       sells securities, a post-effective amendment to this Registration 
       Statement to:

                           (i)      include any Prospectus required by Section 
                  10(a)(3) of the Securities Act, unless the information is 
                  contained in periodic reports filed by the Registrant pursuant
                  to Section 13 or Section 15(d) of the Exchange Act that are 
                  incorporated by reference in the Registration Statement;

                           (ii)     reflect in the Prospectus any facts or 
                  events arising after the effective date of the Registration 
                  Statement (or the most recent post-effective amendment 
                  thereof) which, individually or in the aggregate, represent a 
                  fundamental change in the information set forth in the 
                  Registration Statement, unless the information is contained in
                  periodic reports filed by the Registrant pursuant to Section 
                  13 or Section 15(d) of the Exchange Act that are incorporated 
                  by reference in the Registration Statement.  Notwithstanding 
                  the foregoing, any increase or decrease in volume of 
                  securities offered (if the total dollar value of securities 
                  offered would not exceed that which was registered) and any 
                  deviation from the low or high end of the estimated maximum 
                  offering range may be reflected in the form of prospectus 
                  filed with the Commission pursuant to Rule 424(b) if, in the 
                  aggregate, the change in volume and price represent no more 
                  than a 20 percent change in the maximum aggregate offering 
                  price set forth in the "Calculation of Registration Fee" table
                  in the effective Registration Statement; and

                           (iii)    include any material information with 
                  respect to the plan of distribution not previously disclosed 
                  in the Registration Statement or any material change to such 
                  information in the Registration Statement.

                  (2)      That, for the purpose of determining any liability 
       under the Securities Act, each such post-effective amendment shall be 
       deemed to be a new registration statement relating to the securities 
       offered therein, and the offering of such securities at that time shall 
       be deemed to be the initial bona fide offering thereof.

                  (3)      To file a post-effective amendment to remove from 
       registration any of the securities being registered which remain unsold 
       at the termination of the offering.

                  (b)      Subsequent Exchange Act Documents.  The undersigned 
Registrant hereby undertakes that, for purposes of determining any liability 
under the Securities Act, each filing of the Registrant's annual report pursuant
to Section 13(a) or Section 15(d) of the Exchange Act (and, where applicable, 
each filing of an employee benefit plan's annual report pursuant to Section
15(d) of the Exchange Act) that is incorporated by reference in the Registration
Statement shall be deemed to be a new registration statement relating to the 
securities offered therein, and the offering of such securities at that time 
shall be deemed to be the initial bona fide offering thereof.

                  (c)      Indemnification.  Insofar as indemnification for 
liabilities arising under the Securities Act may be permitted to directors, 
officers and controlling persons of the Registrant pursuant to the foregoing 
provisions, or otherwise, the Registrant has been advised that in the opinion of
the Securities and Exchange Commission such indemnification is against public
policy as expressed in the Securities Act and is, therefore, unenforceable.  In 
the event that a claim for indemnification against such liabilities (other than 
the payment by the Registrant of expenses incurred or paid by a director, 
officer or controlling person of the Registrant in the successful defense of any
action, suit or proceeding) is asserted by such director, officer or controlling
person in connection with the securities being registered, the Registrant will, 
unless in the opinion of its counsel the matter has been settled by controlling 
precedent, submit to a court of appropriate jurisdiction the question whether 
such indemnification by it is against public policy as expressed in the 
Securities Act and will be governed by the final adjudication of such issue.




                                   SIGNATURES

                  The Registrant.  Pursuant to the requirements of the 
Securities Act of 1933, the Registrant certifies that it has reasonable grounds 
to believe that it meets all of the requirements for filing on Form S-8 and has 
duly caused this registration statement to be signed on its behalf by the 
undersigned, thereunto duly authorized, in the Town of Crawley, England on the 
23rd day of August, 2005.



                                   SPIRENT PLC



                                   By:  /s/Anders Gustafsson
                                        Name: Anders Gustafsson
                                        Title: Chief Executive Officer

                  Each person whose signature appears below does hereby make, 
constitute and appoint Anders Gustafsson, his or her true and lawful 
attorney-in-fact and agent, in his or her name, place and stead to execute on 
his or her behalf, as an officer and/or director of Spirent plc (the "Company"),
the Registration Statement of the Company on Form S-8 (the "Registration 
Statement") for the registration of 20,000,000 Ordinary Shares of the Company 
(to be converted upon exercise of options into American Depositary Shares of the
Company), in connection with the Spirent Stock Incentive Plan (f/k/a the 
"Spirent Stock Option Plan") (the "Plan") and any and all amendments (including 
post-effective amendments) to the Registration Statement, and file the same 
with all exhibits thereto and other documents in connection therewith, with the 
Securities and Exchange Commission (the "SEC") pursuant to the Securities Act of
1933 (the "Act"), and any and all other instruments which either of said 
attorneys-in-fact and agents deems necessary or advisable to enable the Company 
to comply with the Act, the rules, regulations and requirements of the SEC in 
respect thereof, and the securities or Blue Sky laws of any State or other 
governmental subdivision, giving and granting to each of said attorneys-in-fact 
and agents full power and authority to do and perform each and every act and 
thing whatsoever necessary or appropriate to be done in and about the premises 
as fully to all intents as he or she might or could do if personally present at 
the doing thereof, with full power of substitution and resubstitution, hereby 
ratifying and confirming all that his or her said attorneys-in-fact and agents 
or substitutes may or shall lawfully do or cause to be done by virtue hereof.

                  Pursuant to the requirements of the Securities Act of 1933, 
this registration statement has been signed by the following persons in the 
capacities and on the dates indicated.







                                                        
Signatures                    Title                               Date

/s/ Anders Gustafsson         Chief Executive and Director        23 August 2005
Anders Gustafsson             (Principal Executive Officer)

/s/ E Hutchinson              Finance Director                    23 August 2005
Eric G. Hutchinson            (Principal Financial and
                              Accounting Officer and Director)

/s/ John Weston               Director (Chairman)                 23 August 2005
John P. Weston

/s/ J A Wyness                Director                            23 August 2005
James A.D. Wyness
                                                        
Marcus Beresford              Director

/s/ A F Given                 Director                            23 August 2005
Andrew F. Given

/s/ Kurt Hellstrom            Director                            23 August 2005
Kurt R. Hellstrom

/s/ P Goran Ennerfelt         Director                            23 August 2005
P. Goran Ennerfelt

/s/ F D'Alessio               Director                            23 August 2005
Frederick D'Alessio

/s/ Frank Pizzi               Authorized U.S. Representative      23 August 2005
Frank Pizzi






                                INDEX TO EXHIBITS

Exhibit No.         Description of Exhibit

4.1                 Memorandum and Articles of Association of the Registrant, as
                    amended on May 4, 2005 (incorporated by reference from 
                    Exhibit 1.1 to the Registrant's annual report on Form 20-F 
                    filed on May 18, 2005).

4.2                 Description of the Company's Ordinary Shares (incorporated 
                    by reference from the Registrant's registration statement on
                    Form 20-F filed on June 27, 2001) and amendments thereto 
                    (incorporated by reference from any amendment or report 
                    filed for purpose of updating such descriptions).

4.3                 Form of the Registrant's ADRs for Ordinary Shares of 31/3p 
                    each (incorporated by reference from Exhibit A to Form F-6 
                    filed on June 27, 2001).

4.4                 Form of Deposit Agreement as amended and restated as of May 
                    5, 2000, as further amended and restated as of  March 23, 
                    2001, as further amended and restated as of July 10, 2001, 
                    among Spirent plc, The Bank of New York as Depositary, and 
                    all Owners and holders from time to time of ADRs issued 
                    thereunder (incorporated by reference from Exhibit A to Form
                    F-6 filed on June 27, 2001).

5                   Opinion of Linklaters, English solicitors to the Registrant.

23.1                Consent of Linklaters to the filing of the opinion contained
                    in Exhibit 5 to this Form S-8.

23.2                Consent of Ernst & Young LLP.

24                  Powers of Attorney (filed herewith - see pages 7-8 of the 
                    Registration Statement).

99.1                Spirent Stock Incentive Plan, as amended (f/k/a the "Spirent
                    Stock Option Plan") (filed herewith).






                                                              Exhibit 5 and 23.1

                                              One Silk Street
                                              London EC2Y 8HQ
                                              Telephone (44-20) 7456 2000
                                              Facsimile (44-20) 7456 2222
                                              DX Box Number 10 CDE
                                              Direct Line (44-20) 7456 5466
                                              Direct Fax (44-20) 7456 2222
                                              dan.schuster-woldan@linklaters.com


 The Board of Directors
 Spirent plc
 Spirent House
 Crawley Business Quarter
 Fleming Way
 Crawley
 West Sussex
 RH10 2QL
                                              23 August 2005

 Our Ref             DSCW



Dear Sirs


Spirent plc (the "Company")

1        This  opinion is  delivered  in  connection  with the  Company's  
         Registration  Statement on Form S-8 (the "Registration  Statement")  to
         be filed under the United  States  Securities  Act of 1933 with  
         respect to 20,000,000  ordinary shares of nominal value 3 1/3 pence 
         each of the Company  ("Ordinary  Shares"),  which Ordinary  Shares  
         will be offered  pursuant  to the  Spirent plc Stock  Incentive  Plan, 
         as amended  (the "Plan").

2        This  opinion is limited to English  law as applied by the  English  
         courts and is given on the basis that it will be governed by and be 
         construed in accordance with English law.

3        For the  purposes of this  opinion we have  examined  and relied on 
         copies of such  corporate  records and other  documents,  including  
         the  Registration  Statement,  and reviewed  such matters of law, as we
         have deemed necessary or appropriate for the purpose of this opinion.

4        Upon the basis of and subject to the  foregoing,  but subject to any  
         matters not  disclosed  to us, it is our opinion:  (i) that (if being 
         issued  pursuant to the Plan) upon such Ordinary  Shares being issued 
         and allotted and the  subscription or exercise price therefore  having 
         been paid pursuant to the Plan (and, in the case of any non-cash  
         payment of the  subscription or exercise price,  such payment having 
         been valued in accordance  with section 108 of the Companies Act 1985 
         (as amended) if required),  such Ordinary Shares will  have  been  duly
         authorised  and  validly  issued  and  will be  fully  paid  and  that 
         no  further contributions  in respect  thereof will be required to be 
         made to the Company by the holders  thereof,  by reason  solely of 
         their being such  holders;  or (ii) that (if such  Ordinary  Shares are
         transferred  to holders of options or awards  pursuant to the Plan) 
         such  Ordinary  Shares will have been duly  authorised and validly 
         issued and fully paid and that no further  contributions  in respect 
         thereof will be required to be made to the Company by the holders 
         thereof, solely by reason of their being such holders.

5        This opinion is given to you solely for use in connection with the 
         filing of the  Registration  Statement. This  opinion is  strictly 
         limited to matters  dealt with  herein and does not extend to and is 
         not to be read as extending by implication to any other matter.

6        We hereby  consent to the filing of this opinion as an exhibit to the  
         Registration  Statement.  In giving this  consent,  we do not admit 
         that we are within the  category  of  persons  whose  consent is  
         required within  Section 7 of the  Securities  Act of 1933,  or the 
         rules and  regulations  of the  Securities  and Exchange Commission 
         thereunder.


Yours faithfully




/s/ Linklaters

Linklaters


A list of the names of the partners  and their  professional  qualifications  is
open to inspection at the above office. The partners are solicitors,  registered
foreign lawyers or European lawyers. The firm is regulated by the Law Society.

Please refer to www.linklaters.com/regulation for important information on the 
regulatory position of the firm.








                                                                    Exhibit 23.2



CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We consent to the incorporation by reference in the Registration Statement (Form
S-8)  pertaining  to the  Spirent  Stock  Incentive  Plan of Spirent  plc of the
reference to our firm in "Item 3 - Key  Information" and of our report dated May
18, 2005, with respect to the consolidated  financial statements and schedule of
Spirent  plc  included  in its  Annual  Report  (Form  20-F) for the year  ended
December 31, 2004 filed with the Securities and Exchange Commission.




/s/ Ernst & Young LLP


Ernst & Young LLP
London, England
August 22, 2005





                                                                    Exhibit 99.1



                                   SPIRENT PLC

                          SPIRENT STOCK INCENTIVE PLAN




Linklaters
                                                    
One Silk Street
London EC2Y 8HQ



Telephone (44-20) 7456 2000
Facsimile (44-20) 7456 2222

Ref 01/145/N Keuning-Price



 

                                   SPIRENT PLC

                          SPIRENT STOCK INCENTIVE PLAN


                 AS AMENDED AND RESTATED EFFECTIVE JUNE 23, 2004


1        Purposes and Scope of Plan

         This Spirent Stock Incentive Plan (the "Plan") of Spirent plc (the 
         "Company")  (registered in England and Wales under number  470893) was 
         formerly  designated  as the Spirent Stock Option Plan.  Under the 
         Plan,  Awards  (as  defined  below in  Section  20.1)  shall be  
         granted  to employees of the Company and its  subsidiaries  enabling 
         such employees to acquire Shares (as defined below in Section 20.14), 
         ADRs and/or cash.

         The Plan is  designed  to enable  the  Company  to  attract  and  
         retain  the best  available personnel,  to provide  additional  
         incentive to employees  and to promote the success of the Company.  
         These  objectives  will be promoted  through the  granting to  
         employees  of Awards including (i) incentive  stock options  
         ("Incentive  Options")  which are intended to qualify under Section 422
         of the Code, (ii) Options which are nonqualified  stock options  
         ("NQSOs"), and (iii) stock  appreciation  rights ("SARs").  Vesting of 
         the Awards granted under the Plan shall be in accordance  with the 
         criteria  established  by the  Remuneration  Committee  (the 
         "Committee") in consultation with the Company's Chief Executive 
         Officer.  All Options granted hereunder shall be NQSOs unless 
         specifically designed as Incentive Options.

         The Awards offered  pursuant to this Plan are a matter of separate  
         inducement and are not in lieu of any salary or other compensation for 
         services.

         Capitalized  terms used herein without  definition shall have the 
         meanings set for in Section 20 hereunder.

2        Amount of Stock Subject to the Plan

         The total number of Shares of the Company  reserved and available for  
         distribution  pursuant to Awards granted hereunder shall not exceed, in
         the aggregate,  one hundred and seventy-five million  (175,000,000)  
         shares of the ordinary  shares,  three and one-third pence par value, 
         per share of the Company or the equivalent in ADRs,  subject to 
         adjustment  described  below, but in no case shall the number of Shares
         so reserved,  when aggregated with all other Shares reserved for 
         issuance under any one or more other plans involving issuance of 
         Shares,  exceed 30 percent of the outstanding ordinary shares of the 
         Company.

         Shares which may be acquired under the Plan may be either  authorised 
         but unissued  Shares or Shares of issued stock,  or both, at the 
         discretion of the Company.  Whenever any outstanding Award or portion 
         thereof expires, is cancelled,  is forfeited or is otherwise  
         terminated for any reason  without  having  been  exercised  or payment
         having  been made in respect of the entire  Award,  the  Shares  
         subject  to  the  expired,  cancelled,  forfeited  or  otherwise 
         terminated portion of the Award may again be the subject of Awards 
         granted hereunder.  In the event of any stock dividend, stock split,  
         consolidation,  combination or exchange of Shares, recapitalisation,  
         reduction of the  Company's  share  capital,  redemption  or repurchase
         of Shares or other  change in the capital  structure  of the Company,  
         corporate  separation  or division  (including,  but not limited to,  
         split-up,  spin-off  or  distribution  to Company shareholders  other 
         than a normal cash dividend),  rights offering,  merger,  
         reorganisation, partial or  complete  liquidation,  or any other  
         corporate  transaction  or event  having an effect  similar to any of 
         the  foregoing,  (i) the  aggregate  number of Shares  reserved for 
         issuance under the Plan, (ii) the number of Shares subject to 
         outstanding  Awards,  (iii) the grant or exercise  price or Base Price 
         (as defined  below in Section 7.4) with respect to any Award and any  
         other  characteristics  or terms of the  Awards as the  Committee  
         shall  deem necessary or appropriate  to reflect  equitably the 
         effects of such changes to the Holders of Awards, shall be 
         appropriately  substituted for new shares or adjusted,  as determined 
         by the Committee in its  discretion.  Notwithstanding  the foregoing,  
         (i) each such adjustment with respect to an Incentive  Option  shall  
         comply with the rules of Section  424(a) of the Code, and (ii) in no 
         event shall any  adjustment  be made which would render any  Incentive
         Option granted  hereunder  other than an  incentive  stock option for 
         the purposes of Section 422 of the Code without the consent of the 
         grantee.

         All Shares shall be subject to the Company's Memorandum and Articles of
         Association.

3        Administration

         The Committee  will have sole and exclusive  authority to administer  
         the Plan. The Committee shall consist of no fewer than two (2) members 
         of the Board of Directors,  each of whom shall be a  "Non-Employee  
         Director"  within the  meaning of Rule  16b-3 or any  successor  rule 
         or regulation ("Rule 16b-3")  promulgated under the Securities  
         Exchange Act of 1934, as amended (the "Exchange  Act").  The Committee 
         shall  administer the Plan so as to comply at all times with Rule 
         16b-3. The Committee shall, at its discretion,  be entitled to delegate
         approval of grants to a sub-committee.

         Subject to the express  provisions of the Plan, the Committee  shall 
         have  authority,  in its discretion and in  consultation  with the 
         Company's Chief  Executive  Officer,  to (i) select employees of the 
         Company and its  subsidiaries  as recipients of Awards;  (ii)  
         determine the number and type of Options to be granted;  (iii)  
         determine the number of SARs to be granted; (iv)  determine the terms 
         and  conditions,  not  inconsistent  with the terms hereof,  of any 
         Awards granted;  (v) determine the performance  conditions,  if any, 
         applicable to any Awards granted;  (vi) waive, at any time, any 
         performance  condition  applicable to an Award;  (vii) adopt, alter and
         repeal such  administrative  rules,  guidelines and practices  
         governing the Plan as it shall, from time to time, deem advisable;  
         (vi) interpret the terms and provisions of the Plan and any Award 
         granted and any agreements  relating  thereto;  and (vii) otherwise
         supervise the administration of the Plan.

         The  determination  of the  Committee  on  matters  referred  to in 
         this  Section  3 shall be conclusive.

4        Eligibility

         Awards may be granted  only to  employees  of the Company and its  
         subsidiaries,  who are not members of the  Committee;  provided,  that 
         no person  shall be eligible for any Award if the granting  of such 
         Award to such person  would  prevent  the  satisfaction  by the Plan of
         the general  exemptive  conditions of Rule 16b-3. The Plan shall not 
         confer upon any employee any right with respect to continuation of 
         employment by the Company or any subsidiary,  nor shall it interfere in
         any way with his or her right or the Company's or any  subsidiary's  
         right to terminate his or her  employment  or at any time,  with or 
         without Cause (as defined below in Section 20.5).

5        Grant of Awards

         Awards may be granted under the Plan within 42 days starting on any of 
         the following:

         (i)      that day of announcement of the Company's  results through a 
                  Regulatory  Information  Service for any period;

         (ii)     in the case of new  employees or employees  who have been  
                  promoted,  the  following  quarter days of the year: 1 
                  January, 1 April, 1 July and 1 October;

         (iii)    any day on which the Committee  resolves that exceptional  
                  circumstances  exist which justify the granting of Awards; or

         (iv)     any day on which changes to the  legislation or regulations  
                  affecting  Awards are announced, effected or made.

         In  addition  Awards  may be  granted  under the Plan to  employees  
         who have  been  recently appointed or promoted on such dates,  at 
         monthly  intervals,  as the Committee may determine. In  exceptional  
         circumstances,  Awards may be granted to  employees  who have been  
         recently appointed or promoted on a date falling between such monthly 
         grant dates.

         It may happen that the Committee cannot grant Awards due to 
         restrictions  imposed by statute, order,  regulation or government 
         directive or by any code adopted by the Company based on the Model 
         Code.  If this occurs,  the Committee may grant Awards within 42 days 
         after the lifting of such restrictions.

6        Stock Options

6.1      General
         Any Options  granted  under the Plan shall be in such form as the  
         Committee may from time to time  approve and the  provisions  of the 
         Option  grants need not be the same with respect to each Holder.  
         Options granted under the Plan may be either  Incentive  Options or 
         NQSOs.  The Committee may grant to any Holder, Incentive Options, NQSOs
         or both types of Options.

         Options granted under the Plan shall be subject to the following  terms
         and  conditions,  and shall contain such  additional  terms and 
         conditions not  inconsistent  with the terms of the Plan,  as the  
         Committee  deems  appropriate.  Each  Option  grant shall be  evidenced
         by an agreement  executed  on behalf of the  Company by an officer or  
         officers  designated  by the Committee and accepted by the Holder.  
         Such agreement shall describe the Options,  state that such Options are
         subject to all the terms and  provisions  of the Plan and shall contain
         such other terms and provisions, consistent with the Plan, as the 
         Committee may approve.

6.2      Exercise Price and Payment
         The price per Share under any Option granted  hereunder shall be such 
         amount as the Committee shall determine,  provided, however, that such 
         price shall not be less than: (i) 100 per cent of the fair market value
         of the Shares subject to such Option,  as determined  below,  at the
         date the Option is granted  (110 percent in the case of an  Incentive  
         Option  granted to any person who, at the time the Option is  granted, 
         owns stock of the Company or any  subsidiary or parent of the Company  
         possessing more than ten percent of the total combined voting power
         of all classes of stock of the Company or of any  subsidiary  or parent
         of the Company (a "10 percent  Shareholder"))  and (ii) if Shares are 
         to be  subscribed,  the nominal  value of the Shares, if higher.

         If the Shares are admitted to the  Official  List of the UK Listing  
         Authority  and traded on the London Stock  Exchange,  the fair market  
         value of the Shares shall be the middle  market quotation as derived 
         from the Daily Official List of the London Stock Exchange.

         If Shares are listed on a national  securities  exchange in the United 
         States on the date any Option is granted,  the fair market  value per 
         Share shall be deemed to be the average of the high and low sale price 
         on such  national  securities  exchange  in the United  States on the 
         date upon which the  Option is  granted,  but if the  Shares are not 
         traded on such date,  or such  national  securities  exchange is not 
         open for  business on such date,  the fair market value per Share  
         shall be the  average  of the high and low sale price  determined  as 
         of the closest  preceding  date on which such  exchange  shall have 
         been open for  business  and the Shares were traded.

         If the Shares are listed on more than one national  securities  
         exchange in the United States on the date any such  Option  is  
         granted,  the  Committee  shall  determine  which  national securities 
         exchange shall be used for the purpose of  determining  the fair market
         value per Share.  If the Shares are not listed on a national  
         securities  exchange  but are reported on the National  Association of 
         Securities Dealers,  Inc. Automated Quotation System ("Nasdaq"), the 
         fair  market  value per Share  shall be deemed to be the  average of 
         the high bid and low sale  prices on the date upon which the Option is 
         granted as  reported  by Nasdaq or, if the Shares are not traded on 
         such date or Nasdaq is not open for business on such date,  the fair
         market value per Share shall be the average of the high and low sale 
         price  determined  as of the closest preceding date on which Nasdaq 
         shall have reported the Shares.

         For purposes of this Plan, the  determination  by the Committee of the 
         fair market value of a Share shall be conclusive.

6.3      Term of Options and Limitations on the Right of Exercise
         The term of each Option will be for such period as the Committee  shall
         determine,  provided that in no event may any Option granted  hereunder
         be exercisable  more than seven years from the date of grant of such 
         Option (five years in the case of an Incentive  Option granted to a
         10 per cent  Shareholder).  Each Option shall become  exercisable in 
         such  instalments and at such times as may be designated  by the  
         Committee and set forth in the agreement  related to the grant of  
         Options.  To the extent not  exercised,  instalments  shall  accumulate
         and be exercisable, in whole or in part, at any time after becoming 
         exercisable,  but not later than the date the Option expires.

         The  Committee  shall  have the right to  limit,  restrict  or  
         prohibit  through  the use of performance  conditions or otherwise,  in
         whole or in part, from time to time,  conditionally or  
         unconditionally,  rights to exercise any Option granted hereunder.  To 
         the extent that an Option remains unexercisable as a result of any such
         limitation,  restriction or prohibition, such Option shall,  unless  
         otherwise  determined by the Committee,  lapse in accordance with
         the agreement related to the grant of such Option.

         To the extent that an Option is not exercised within the period of  
         exercisability  specified therein, it shall expire as to the then 
         unexercised part.

6.4      Exercise of Options
         Options  granted  under the Plan  shall be  exercised  by the Holder as
         to all or part of the Shares  covered  thereby  by the  giving of  
         written  notice of the  exercise  thereof to the Company at the 
         registered  office of the Company or such other address as specified 
         from time to time by the  Company,  specifying  the number of Shares to
         be  purchased,  accompanied  by payment  therefore made to the Company 
         for the full purchase  price of such Shares.  The date of actual  
         receipt by the Company of such notice  shall be deemed the date of 
         exercise of the Option  with  respect to the Shares  being  purchased, 
         subject to any delay or  postponement which the Committee  considers is
         necessary or desirable in order to comply with,  conform to or take 
         account of the  requirements  of any applicable  laws or  regulations  
         (including the Model Code or any code adopted by the Company based on 
         it).

         Upon the  exercise of an Option  granted  hereunder,  the Company  
         shall cause the  purchased Shares to be issued or transferred  
         (including a transfer out of treasury) only when it shall have  
         received the full purchase  price for the Shares in cash;  provided,  
         however,  that in lieu of cash,  the Holder of an Option  may,  to the 
         extent  permitted  by the Company and by applicable  law,  exercise  an
         Option  in whole or in part,  by  delivering  to the  Company 
         unrestricted  Shares (in proper form for  transfer and  accompanied  by
         all  requisite  stock transfer tax stamps or cash in lieu thereof)  
         owned by such Holder having a fair market value equal to the cash 
         exercise  price  applicable to that portion of the Option being  
         exercised. The fair market value of the Shares so delivered  shall be  
         determined as of the Business Day immediately  preceding  the date on 
         which the Option is  exercised,  or as may be required in order  to  
         comply  with  or to  conform  to  the  requirements  of  any  
         applicable  laws  or regulations.  For purposes of this  paragraph,  
         the provisions of Section 6.2 relating to the fair market value of 
         Shares shall apply in all respects.

         Notwithstanding the foregoing,  the Company,  in its sole discretion,  
         may establish cashless exercise  procedures  whereby an Option Holder, 
         subject to the  requirements  of Rule 16b-3, Regulation T, federal 
         income tax laws, and other federal,  state and local tax and securities
         laws,  can exercise an Option or a portion  thereof  without  making a 
         direct  payment of the Option price to the Company,  including a 
         programme  whereby  Option  Shares would be sold on behalf of and at 
         the  request  of an Holder by a  designated  broker and the  exercise  
         price would be satisfied out of the sale  proceeds and delivered to the
         Company.  If the Company so elects to establish a cashless exercise 
         programme,  the Company shall determine,  in its sole discretion,  and 
         from time to time, such  administrative  procedures and policies as it 
         deems appropriate  and such  procedures  and policies shall be binding 
         on any Option Holder wishing to utilise the cashless exercise 
         programme.

         Notwithstanding  the  foregoing,  from and after the date that Options 
         become subject to fair value  accounting,  the  Committee  may,  at any
         time and in its sole  discretion,  permit an Option to be settled  
         upon  exercise in the same manner as a SAR that can be settled  only in
         Shares.  The  number  of Shares to be issued or  transferred  
         (including  a  transfer  out of treasury)  pursuant to the exercise of 
         an Option that is so settled  shall be  determined  by dividing (i) the
         aggregate  fair market value of the Shares (on the Business Day  
         immediately preceding  the date of exercise)  underlying  the portion 
         of the Option  exercised  minus the aggregate  exercise  price of the  
         portion of the Option  exercised  by (ii) the fair  market value of a 
         Share  on the  Business  Day  immediately  preceding  the  date of  
         exercise.  Any fraction of a Share  arising from this  calculation  
         shall be ignored and the Holder will not be entitled to any  settlement
         in respect of such  fraction,  unless the  Committee  decides
         otherwise.

6.5      Maximum Allotment of Incentive Options
         If the  aggregate  fair market  value of Shares with respect to which  
         Incentive  Options are exercisable  for the first time by an  employee 
         during any  calendar  year  (under all stock option  plans of the  
         Company  and any  parent  or any  subsidiary  of the  Company)  exceeds
         $100,000,  any Options which  otherwise  qualify as Incentive  Options,
         to the extent of the excess, will be treated as NQSOs.

7        Stock Appreciation Rights (SARs)

7.1      General
         Any SARs granted  under the Plan shall be in such form as the Committee
         may from time to time approve  and the  provisions  of the SAR  grants 
         need not be the same with  respect  to each Holder.

         A SAR is a right to  receive an amount  (the "SAR  Amount")  calculated
         in  accordance  with Section 7.4. The Committee shall, in its sole 
         discretion,  determine whether the SAR is to be satisfied in Shares, 
         cash or a combination thereof.

         SARs  granted  under the Plan shall be subject to the  following  terms
         and  conditions,  and shall contain such  additional  terms and 
         conditions not  inconsistent  with the terms of the Plan, as the 
         Committee deems  appropriate.  Each SAR grant shall be evidenced by an 
         agreement executed on behalf of the Company by an officer or officers  
         designated  by the Committee and accepted by the Holder.  Such  
         agreement  shall  describe the SARs,  state that such SARs are subject 
         to all the terms and  provisions  of the Plan and shall  contain such 
         other terms and provisions, consistent with the Plan, as the Committee 
         may approve.

7.2      Term of SARs and Limitations on the Right of Exercise
         The grant  date of a SAR will be the date on which the SAR is  awarded 
         by the  Committee  or such other future date as the Committee shall 
         determine in its sole  discretion.  The term of each SAR will be for 
         such period as the Committee shall determine,  provided that in no 
         event may any SAR granted  hereunder be exercisable more than seven 
         years from the date of grant of such SAR. Each SAR shall become  
         exercisable in such  instalments and at such times as may be designated
         by the  Committee and set forth in the agreement  related to the grant 
         of SARs. To the extent not exercised,  instalments  shall  accumulate 
         and be exercisable,  in whole or in part, at any time after becoming 
         exercisable, but not later than the date the SAR expires.

         The  Committee  shall  have the right to  limit,  restrict  or  
         prohibit  through  the use of performance  conditions or otherwise,  
         in whole or in part, from time to time,  conditionally or  
         unconditionally,  rights to exercise any SAR granted hereunder.  To the
         extent that a SAR remains  unexercisable as a result of any such 
         limitation,  restriction or prohibition,  such SAR shall,  unless  
         otherwise  determined  by the  Committee,  lapse in  accordance  with 
         the agreement related to the grant of such SAR.

         To the extent  that a SAR is not  exercised  within the  period of  
         exercisability  specified therein, it shall expire as to the then 
         unexercised part.

7.3      Exercise of SARs
         SARs granted  under the Plan shall be exercised by the Holder as to all
         or part of the Shares covered  thereby by the giving of written  notice
         of the  exercise  thereof to the Company at the registered  office of 
         the Company or such other address as specified from time to time by
         the  Company,  specifying  the  number  of  Shares  with  respect  to  
         which  the SAR will be exercised.  The date of actual receipt by the 
         Company of such notice shall be deemed the date of exercise of the SAR,
         subject to any delay or postponement  which the Committee  considers
         is  necessary  or  desirable  in order to comply  with,  conform  to or
         take  account  of the requirements  of any  applicable  laws or  
         regulations  (including the Model Code or any code adopted by the 
         Company based on it).

7.4      Calculation of the SAR Amount
         The SAR Amount shall be determined by multiplying:

         (i)      the excess of the fair market  value of a Share on the  
                  Business  Day  immediately  preceding the date of  exercise  
                  of the SAR over the per Share price  ("Base  Price")  fixed by
                  the  Committee  on the date of grant of the SAR  (which may 
                  not be less than the fair market value of a Share on the date 
                  of grant), by

         (ii)     the number of Shares with respect to which the SAR is 
                  exercised,

         provided  however,  that,  on the date of grant,  the Committee  may  
         establish,  in its sole discretion, a maximum amount per Share that 
         will be payable upon exercise of a SAR.

7.5      Settlement of SARs in Shares
         The number of Shares to be issued or  transferred to the Holder in 
         settlement of the exercise of a SAR which the Committee has  
         determined is to be satisfied in Shares shall be determined by 
         dividing  (i) the SAR Amount by (ii) the fair market  value of a Share 
         on the Business Day immediately  preceding  the date of exercise  
         determined  in  accordance  with  Section  6.2, ignoring any fractions
         of a Share. Any residual SAR Amounts  (representing any fractions of a
         Share) shall be ignored and the Holder will not be entitled to any  
         settlement  in respect of such SAR Amounts, unless the Committee 
         decides otherwise.

         Upon exercise of a SAR to be settled in Shares,  the Company shall 
         either issue the requisite number of Shares,  or procure the  transfer 
         of such  number of Shares  (including  a transfer out of treasury), to 
         the Holder.

7.6      Settlement of SARs in cash
         Upon the  exercise  of a SAR to be settled in cash,  the  Company  
         shall pay or procure to be paid to the Holder a cash sum equivalent to 
         the SAR Amount.

7.7      Meaning of fair market value
         For  purposes of this  Section 7, the fair market  value of a Share  
         shall be  determined  in accordance with Section 6.2.

8        Termination of Employment

         Upon termination of employment of any Holder,  any Award  previously  
         granted to such Holder, unless  otherwise  specified  by  the  
         Committee,   shall,  to  the  extent  not  theretofore exercisable,  
         terminate and become null and void. If the Holder shall die or become  
         disabled (as  described  in  Section  22(e)3 of the Code)  while in the
         employ of the  Company or any subsidiary  of the  Company,  and at a 
         time when such  employee  was  entitled to exercise an Award as herein 
         provided,  his estate or the legatees or distributees of his estate or 
         of the Award,  as the case may be, may,  within one year  following the
         date of death or disability, but not  beyond  that  time and in no 
         event  later  than the  expiration  date of the  Award, exercise such 
         Award, to the extent exercisable on the date of death or disability.

         In no event shall any person be entitled to exercise  any Award after 
         the  expiration  of the period of exercisability of such Award as 
         specified therein.

         Other than as set forth above,  if a Holder  voluntarily  terminates 
         his or her employment or is discharged for reasons other than Cause,  
         any Award which is capable of being exercised as at  the  time  of  
         termination  shall  be  exercisable  for  sixty  days  from  the  date 
         of termination.  After such time any Award granted  hereunder  shall be
         cancelled and the Holder shall have no  further  rights to  exercise  
         any such  Award and all of the  Holder's  rights thereunder shall 
         terminate as of 60 days after the date of termination of employment.  
         Except as otherwise  determined by the  Committee,  if Holder's  
         employment is terminated for Cause, any Award granted  hereunder  
         (whether or not exercisable)  shall be cancelled and the Holder shall 
         have no  further  rights to  exercise  any such  Award and all of the  
         Holder's  rights thereunder  shall terminate as of the effective date 
         of such  termination of employment.  The determination  of the  
         Committee,  in its sole and  absolute  discretion,  on the  matter  of
         whether a Holder's employment is terminated for Cause shall be 
         conclusive.

         If an Award granted  hereunder shall be exercised by the legal  
         representative  of a deceased Holder or former  Holder or by reason of 
         the death of any  Holder or former  Holder,  written notice of such 
         exercise shall be accompanied by a certified copy of letters  
         testamentary  or equivalent proof of the right of such legal  
         representative  or other person to exercise such Award.

         For the purposes of the Plan, an employment  relationship shall be 
         deemed to exist between an individual  and a corporation  if, at the 
         time of the  determination,  the  individual was an "employee" of such 
         corporation for purposes of Section 422(a) of the Code.

         A termination of employment  shall not be deemed to occur by reason of 
         (i) the transfer of an employee from  employment by the Company to 
         employment by a subsidiary of the Company or (ii) the transfer of an 
         employee  from  employment by a subsidiary of the Company to employment
         by the Company or by another subsidiary of the Company.

9        Non-transferability of Awards

         An Award  granted  hereunder  shall  not be  transferable,  whether  by
         operation  of law or otherwise, other than by will or the laws of 
         descent and distribution,  and any Award granted hereunder shall be 
         exercisable, during the lifetime of the Holder, only by such Holder.

         An Award and the Holder's rights  thereunder shall terminate  
         immediately if the Holder:  (a) attempts to or does sell, assign, 
         transfer,  pledge,  hypothecate or otherwise dispose of the Award or 
         any rights  thereunder to any other person;  or (b) becomes insolvent 
         or bankrupt or becomes involved in any manner so that the Award or any
         rights thereunder  becomes subject to being taken from him to satisfy 
         his debts or liabilities.

10       Purchase for Investment

         Except as hereafter provided,  the Company may require the recipient of
         Shares pursuant to an Award  granted  hereunder,  upon  receipt  
         thereof,  to execute  and deliver to the Company a written statement,  
         in form satisfactory to the Company,  in which such Holder represents 
         and warrants that such Holder is acquiring the Shares  acquired  
         thereunder for such Holder's own account,  for investment only and not 
         with a view to the resale or distribution  thereof, and agrees  that 
         any  subsequent  offer for sale or sale or  distribution  of any of 
         such  Shares shall be made only pursuant to either (a) a  Registration 
         Statement on an  appropriate  form under the Securities Act of 1933, as
         amended (the "Act"),  which  Registration  Statement has become  
         effective  and is current with regard to the Shares being  offered or 
         sold,  or (b) a specific  exemption  from the  registration  
         requirements  of the Act,  but in claiming  such exemption  the Holder
         shall,  prior to any offer for sale or sale of such  Shares,  obtain a 
         prior favourable  written opinion,  in form and substance  satisfactory
         to the Company,  from counsel for or approved by the Company,  as to 
         the  applicability of such exemption  thereto. The  foregoing  
         restriction  shall not apply to (i)  issuances  by the Company so long 
         as the Shares  being issued are  registered  under the Act and a  
         prospectus  in respect  thereof is current or (ii)  reofferings  of 
         Shares by  affiliates of the Company (as defined in Rule 405 or any 
         successor rule or regulation  promulgated under the Act) if the Shares 
         being reoffered are registered under the Act and a prospectus in 
         respect thereof is current.

11       Issuance of Certificates; Legends; Payment of Expenses

         The Company  may  endorse  such legend or legends  upon the  
         certificates  for Shares  issued pursuant  to a grant  thereunder  and 
         may issue  such  "stop  transfer"  instructions  to its transfer  agent
         in  respect  of such  Shares  as,  in its  discretion,  it  determines 
         to be necessary or appropriate to (i) prevent a violation of, or to 
         perfect an exemption  from, the registration  requirements  of the Act,
         (ii)  implement  the  provisions of the Plan and any agreement  between
         the Company and the Holder with  respect to such  Shares,  or (iii) 
         permit the Company to determine  the  occurrence  of a  disqualifying  
         disposition,  as described in Section  421(b) of the Code,  of Shares  
         transferred  upon  exercise of an  Incentive  Option granted under the 
         Plan.

         The Company  shall pay all issue or transfer  taxes with  respect to 
         the issuance or transfer of Shares upon exercise of an Award,  as well 
         as all fees and expenses  necessarily  incurred by the Company in 
         connection  with such issuance or transfer,  except fees and expenses 
         which may be  necessitated  by the filing or amending of a  
         Registration  Statement  under the Act, which  fees  and  expenses  
         shall  be  borne  by the  recipient  of the  Shares  unless  such 
         Registration  Statement has been filed by the Company for its own 
         corporate purposes (and the Company so states) in which event the  
         recipient  of the Shares shall bear only such fees and expenses as are 
         attributable  solely to the inclusion of the Shares he or she receives 
         in the Registration  Statement,  provided  that the Company  shall have
         no obligation to include any Shares in any Registration Statement.

         All  Shares  issued as  provided  thereunder  shall be fully paid and  
         non-assessable  to the extent permitted by law.

12       Withholding Taxes

         The  Company  or any  subsidiary  may  require  an  employee  
         exercising  an NQSO or SAR,  or disposing  of  Shares  acquired  
         pursuant  to  the  exercise  of  an  Incentive  Option  in a 
         disqualifying  disposition  (within the meaning of Section 421(b) of 
         the Code),  to reimburse the Company or any  subsidiary  for any taxes 
         required by any  government  to be withheld or otherwise  deducted  and
         paid by the  Company in respect of the  issuance or  disposition  of
         Shares.  In lieu thereof,  the Company or any subsidiary shall have the
         right to withhold the amount  of such  taxes  from any  other  sums due
         or to become  due from the  Company  or any subsidiary to the employee
         upon such terms and conditions as the Committee  shall  prescribe.
         Notwithstanding  the  foregoing,  the  Committee  may, by the adoption
         of rules or otherwise, modify the provisions of this Section 12 or 
         impose such other  restrictions or limitations as may be necessary to 
         ensure that the withholding  transactions  described above will be 
         exempt transactions under Section 16(b) of the Exchange Act.

         If a Holder  makes a  disposition,  within  the  meaning  of  Section  
         424(c) of the Code and regulations promulgated thereunder,  of any 
         Share or Shares issued to such Holder pursuant to the exercise of an 
         Incentive  Option within the two-year  period  commencing on the day 
         after the date of the grant or within the one-year  period  commencing 
         on the day after the date of transfer of such Share or Shares to the 
         Holder  pursuant to such exercise,  the Holder shall, within 10 days of
         such  disposition,  notify the  Company  thereof,  by  delivery  of 
         written notice to the Company at its registered office.

13       Listing of Shares and Related Matters

         If  at  any  time  the  Committee  shall  determine  in  its  
         discretion  that  the  listing, registration  or  qualification  of the
         Shares  covered by the Plan upon the Official List of the UK Listing  
         Authority or any national  securities  exchange or under any state or 
         federal law or the  consent  or  approval  of any  governmental  
         regulatory  body,  is  necessary  or desirable as a condition of, or in
         connection  with, the sale or purchase of Shares under the Plan, no 
         Shares shall be issued unless and until such listing,  registration,  
         qualification, consent or approval shall have been effected or 
         obtained,  or otherwise provided for, free of any conditions not 
         acceptable to the Committee.

         Shares  issued on the exercise of an Award shall rank equally in all 
         respects with the Shares in issue on the date of allotment.  They shall
         not rank for any rights attaching to Shares by reference to a record 
         date preceding the date of allotment.

         Where Shares are to be transferred,  including a transfer out of 
         treasury, on the exercise of an Award,  award Holders shall be entitled
         to all rights attaching to the Shares by reference to a record date on
         or after the transfer  date.  They shall not be entitled to rights 
         before such date.

         If and so long as the  Shares are listed on the  Official  List of the
         UK Listing  Authority, the  Company  shall apply for  listing of any 
         Shares  issued  pursuant to the Plan as soon as practicable after the 
         allotment thereof.

14       Amendment of the Plan

         Except as  following,  the  shareholders  of the Company in general  
         meeting must approve any change  to the  advantage  of  present  or  
         future  Holders  of  Awards  which  relate to the following:  (i) the 
         persons to or for whom Shares may be  provided  under the Plan;  (ii) 
         the limitations  on the  number of Shares  which may be issued  under 
         the Plan;  (iii) the Option exercise  price or SAR Base  Price;  (iv)  
         rights  affecting  the  Awards;  (v) the rights of Holders of the 
         Awards in the event of a capitalisation  issue,  rights issue,  
         subdivision or consolidation  of shares or  reduction or any other  
         variation of capital of the Company;  or (vi) the terms of this Section
         14.

         The  Committee  may change the Plan and need not obtain the approval of
         the  shareholders  of the Company in general meeting for any minor 
         changes:  (i) to benefit the  administration  of the Plan;  (ii) to 
         take  account of a change in  legislation;  or (iii) to obtain or 
         maintain favourable tax,  exchange control or regulatory  treatment of 
         the Company,  any subsidiary or any holder of an Award.

         No  amendment  will take effect to the extent  that the Plan would  
         cease to be an  "employee share scheme" as defined in section 743 of 
         the Companies Act 1985.

         The  Committee  shall be  authorised  to  amend  the Plan  and the  
         terms of  Awards  granted hereunder to permit the Incentive  Options  
         granted  hereunder to qualify as incentive  stock options within the 
         meaning of Section 422 of the Code. The rights and  obligations  under 
         any Award granted  before  amendment of the Plan or any  unexercised  
         portion of such Award shall not be adversely  affected by  amendment of
         the Plan or the Award  without the consent of the Holder of the Award.

15       Termination or Suspension of the Plan

         Unless  terminated  earlier by the Company directors or shareholders 
         the Plan shall terminate at the  conclusion of the  Company's  2007 
         annual  general  meeting,  unless  extended by the approval  of  
         shareholders  of the  Company in general  meeting.  An Award may not be
         granted while the Plan is  suspended  or after it is  terminated.  
         Rights and  obligations  under any Award  granted  while the Plan is in
         effect shall not be altered or impaired by suspension or termination  
         of the  Plan,  except  upon the  consent  of the  person  to whom the  
         Award was granted.  The power of the  Committee to construe and  
         administer  any Award granted prior to the  termination or suspension 
         of the Plan under Section 3 nevertheless  shall continue after such 
         termination or during such suspension.

16       Governing Law

         The Plan, such Awards as may be granted  thereunder and all related 
         matters shall be governed by, and construed and enforced in accordance 
         with, the laws of the State of Delaware.

17       Partial Invalidity

         The  invalidity  or  illegality  of any  provision  herein  shall not 
         be deemed to affect the validity of any other  provision.  In no case 
         shall the Company or any subsidiary be required to take or omit any 
         action  under this Plan which would  cause it to breach any law,  rule 
         or ordinance.

18       Effective Date

         The Plan shall become effective upon the adoption by the Board of 
         Directors,  subject only to the approval by the  affirmative  vote of 
         the holders of a majority of the  securities of the Company  present,  
         or  represented,  and entitled to vote at a meeting of  stockholders  
         duly held. Grants made prior to such stockholder approval shall be 
         contingent on such approval.

19       Exclusion from Retirement and Fringe Benefit Computation

         No portion of the grant of Awards  under  this Plan shall be taken into
         account as  "wages", "salary" or "compensation" for any purpose, 
         whether in determining  eligibility,  benefits or otherwise,  under  
         (i)  any  pension,  retirement,  profit  sharing  or  other  qualified
         or non-qualified  plan of deferred  compensation,  (ii) any employee  
         welfare or fringe  benefit plan  including,  but  not  limited  to,  
         group  insurance,   hospitalisation,   medical  and disability,  or 
         (iii) any form of  extraordinary  pay  including  but not limited to 
         bonuses, sick pay and vacation pay.

20       Definitions

20.1     Award
         An "Award" means any Option or SAR granted pursuant to the Plan.

20.2     ADR
         An "ADR" is an American  Depositary  Receipt issued in respect of one 
         or more ordinary shares in the capital of the Company.

20.3     Award Agreement
         "Award  Agreement"  means the  agreement  between the  Company and the 
         Holder  referred to in Sections 6.1 and 7.1 above, evidencing the grant
         of an Option or a SAR under the Plan.

20.4     Business Day
         "Business  Day" means a day on which the London  Stock  Exchange  (or, 
         if relevant and if the Committee  determines,  any stock exchange 
         nominated by the Committee on which the Shares are traded) is open for 
         the transaction of business.

20.5     Cause
         "Cause" means, except as otherwise defined in an Award Agreement,  with
         respect to any Holder (as determined by the Committee in its sole  
         discretion) (i) the continued and wilful failure of the Holder  
         substantially  to perform the duties of his or her  employment for the 
         Company or any of its  subsidiaries  (other than any such  failure due
         to the  Holder's  disability); (ii) the  Holder's  engaging  in  
         wilful  or  serious  misconduct  that has  caused  or could reasonably 
         be  expected  to  result  in  material  injury  to  the  Company  or  
         any  of its subsidiaries or affiliates,  including,  but not limited to
         by way of damage to the Company's or a  subsidiary's  reputation  or 
         public  standing;  (iii) the  Holder's  conviction  of, or entering a 
         plea of guilty or nolo contendere to, a crime  constituting a felony;  
         or (iv) the Holder's  material  violation or breach of the Company's or
         any subsidiary's  code of conduct or ethics or other Company policy or
         rule or the material  breach by the Holder of any of his or her  
         obligations  under any written  covenant or agreement  with the Company
         or any of its subsidiaries  or affiliates;  provided that,  with 
         respect to any Holder who is a party to an employment  agreement with 
         the Company or any subsidiary,  "Cause" shall,  in addition,  have
         the meaning  specified in such  Holder's  employment  agreement and any
         conflict or ambiguity shall be resolved by the Committee in its 
         absolute discretion.

20.6     Code
         The "Code" is the United States Internal Revenue Code of 1986, as 
         amended.

20.7     Holder
         "Holder" means a person holding an Award or his legal representatives.

20.8     Model Code
         "Model Code" means the UK Listing  Authority  Model Code for  
         transactions  in  securities by directors, certain employees and 
         persons connected with them.

20.9     Option
         An  "Option"  is the right  granted  to a Holder  pursuant  to the Plan
         to  purchase a stated number of  Shares  at a stated  price for a  
         specified  period of time.  An Option  may be an Incentive Option or an
         NQSO.

20.10    Rule 16b-3
         "Rule 16b-3" is Rule 16b-3 issued by the United  States  Securities  
         and Exchange  Commission pursuant to the Securities  Exchange Act of 
         1934 and generally  providing certain  exemptions for the option plans.

20.11    Regulation T
         "Regulation  T" is  Regulation  T issued  by the  United  States  
         Federal  Reserve  Board and generally  providing rules and exemptions 
         pertaining to extensions of credit based on values of securities.

20.12    Regulatory Information Service
         "Regulatory  Information  Service"  means a service  listed in  
         Schedule 12 to the UK Listing Authority Listing Rules.

20.13    SAR
         A "SAR" is a right to receive the "SAR Amount"  calculated  in  
         accordance  with Section 7.4, the  exercise  of which  will be  settled
         in  Shares,  cash or a  combination  thereof at the discretion of the 
         Committee.

20.14    Shares
         "Shares"  means fully paid  ordinary  shares in the capital of the 
         Company or, as the context may require, ADRs.

21       Non-Guarantee of Employment

         Nothing in the Plan or in any Award  granted  pursuant  to the Plan 
         shall be  construed  as a contract of  employment  between  the  
         Company or a  Subsidiary  and its  employees,  or as a contractual  
         right  to  continue  in the  employ  of the  Company  or a  Subsidiary,
         or as a limitation  of the right of the Company or a  Subsidiary  to 
         discharge  its  employees at any time.

22       Notices

         All notices and other  communications made or given pursuant to this 
         Plan shall be in writing and shall be sufficiently made or given if 
         delivered or mailed,  addressed to the employee at the address  
         contained  in the  records of the  Company or to the  Company at 
         Spirent  House, Crawley Business Quarter, Fleming Way, Crawley, West 
         Sussex RH10 9QL, United Kingdom.

23       Reports

         If a Holder is not already a  shareholder,  the Company  shall  deliver
         a copy of such annual financial reports as may be issued to holders of 
         Shares.