G4S plc is pleased to announce that Clare Spottiswoode will join the board as a non-executive director on 14 June 2010.

A mathematician and economist by training, Ms Spottiswoode’s career has included time at the UK Treasury, as director general of Ofgas, the UK gas regulator, and as Policyholder Advocate for Norwich Union’s with-profits policyholders at Aviva. In addition she has set up and managed her own businesses and has considerable experience in the gas and oil sectors. During the last five years she has been a director of Bergesen Worldwide Gas ASA, British Energy Group plc, Biofuels Corporation plc, Petroleum Geo Services ASA and Anker PLC. She is currently a director of Tullow Oil plc, EnergySolutions, Inc. and Ilika plc.

Commenting on the appointment, Alf Duch-Pedersen, Chairman said: Clare Spottiswoode brings with her a great breadth of experience from both the public and private sectors and in many parts of the world. We look forward to the added dimension she will bring to our board debates.

No further information is required to be disclosed under paragraph 9.6.13R of the Listing Rules.