Since 1967, more than 730,000 Palestinian men, women and children are estimated to have been imprisoned by Israeli military courts. The majority of such prisoners are held in detention facilities inside Israel, in violation of the Fourth Geneva Convention, which prohibits the transfer of these prisoners into Israel...According to corporate accountability campaigners...G4S...signed a contract with the Israeli Prison Authority in 2007 to provide services to a number of prisons and detention facilities. Some of these are known to house prisoners transferred from the West Bank...G4S have said that it will exit from all the contracts it holds in the West Bank at the earliest opportunity the contract terms allow. They also say that they have not violated any international laws, which on this specific issue may be correct, given that the Geneva Conventions apply only to Governments that have ratified their terms.