4 December 2007 G4S PLC Purchase of Shares by Employee Benefit Trust The company was informed today that, on 3 December 2007, the trustees of the Group 4 Securicor Employee Benefit Trust (“the Trust”) purchased 483,775 ordinary shares of G4S plc at £2.1925 per share. Following the acquisition, 5,478,520 ordinary shares of G4S plc are held by the Trust. The executive directors of the company and other persons within the company discharging managerial responsibilities are within the class of potential beneficiaries under the Trust and are deemed to have a non-beneficial interest in these ordinary shares. However, none of these persons has acquired a beneficial interest in such shares. Peter David Company Secretary