Amvescap PLC

FORM SAR 3


Lodge with a RIS or Newstrack if appropriate and the Takeover Panel.
A copy must also be sent to the company the shares of which are
 acquired.

                                  Date of disclosure   28 NOVEMBER 2003

            DISCLOSURE UNDER RULE 3 OF THE RULES GOVERNING
              SUBSTANTIAL ACQUISITIONS OF SHARES ("SARs")

Date of acquisition .. 27 NOVEMBER 2003

Acquisition in (name of company)  BTG PLC

   (1)Class of voting shares    Number of           If rights over
      (eg ordinary shares        shares/rights      shares acquired,
                                over shares acquiredas opposed to the
                                                    shares themselves,
                                                    specify nature of
                                                    rights

      ORDINARY 10P              550,000 shares                       -
                              - N/A     rights                       -

   (2)Resultant total           Resultant total     Total percentage
      holding of voting          holding
      shares (and % of          of rights over
      total voting shares        shares
      in issue)                 (and % of total
                                 voting
                                shares in issue)

      25,411,300 (24.11%)                   -        25,411,300 (24.11%)

   (3)Party making disclosure.... AMVESCAP PLC

   (4)(a)  Name of person acquiring shares or rights over shares
                      DISCRETIONARY MANAGED CLIENTS OF AMVESCAP
           and, if different, beneficial owner

      (b)  Names of any other persons acting by agreement or
           understanding (see SAR 5)


Signed, for and on behalf of the party named in (3) above ..R. CLYDE

(Also print name of signatory)...ROBERT CLYDE

Telephone and extension number .... 020 7065 3720

Note. Under SAR 5, the holdings of and acquisitions by persons acting
 by agreement or understanding must be aggregated and treated as a
 holding of or acquisition by one person. Note 3 on SAR 5 requires
 persons who must aggregate holdings to disclose certain disposals


For full details of the SARs disclosure requirements, see Rules 3 and 5 of the
SARs. If in doubt, contact the Panel on Takeovers and Mergers, Monitoring
Section. Tel. No: 020 7638 0129. Email:monitoring@disclosure.org.uk