Major Shareholder Announcement

| Source: G4S plc
28 December 2007                                                                

                                    G4S plc                                     
                Notification of Reduction in Major Shareholding                 

The company has been notified that INVESCO Limited has reduced its aggregate    
direct and indirect holding in the ordinary shares and voting rights of G4S plc 
so that it now controls the voting rights in less than 5% of the company's      
shares, its remaining shareholding being held indirectly.                       

Peter David                                                                     
Company Secretary