13 March 2008 G4S PLC Notification of Major Shareholding The company was notified on 12 March 2008 that the voting rights in the 171,939,961 shares of 25p each in the company and registered under the clearance system operated by Værdipapircentralen A/S in the name of Skagen Stichting Administratiekantoor (“SSA”) have changed. Other defined terms used in this announcement are: Nils Jørgen Philip-Sørensen CBE (“JPS”) Kleinwort Benson (Guernsey) Trustees Limited and Kleinwort Benson (Guernsey) Trustees (1997) Limited (together “the Trustees”), acting as the trustees of the trust known as the Skagen 2004 Trust (“the Trust”) Skagen Limited (“SL”) Skagen Alpha Limited (“SAL”) Skagen Gamma Limited (“SGL”) The company has been advised as follows: Prior to the acquisition/disposal of voting rights, which occurred on 10 March 2008, the controlled undertaking through which the voting rights were held was SAL. The voting rights are now held through SGL. The Trustees (as trustees of the Trust) own 100% of the shares in SL, which owns 100% of the shares in SAL, which owns 100% of the shares in SGL. Each of JPS, the Trustees (as the trustees of the Trust), SL, SAL and SGL holds indirectly 171,939,961 voting rights (13.4%). Under the provisions of the Trust, JPS has certain limited rights with respect to shares in the company which give him control, for the purposes of the Rules, of the Trust. Peter David Company Secretary