Security company G4S will not be allowed to run HMP Birmingham again for at least six months. : Birmingham Prison is being temporarily taken over by the government from the private firm G4S, after inspectors said it had fallen into a "state of crisis". A new governor and extra staff are being brought in and the capacity of HMP Birmingham will be cut by 300. It will not be returned to G4S for at least six months - until ministers feel "sufficient progress" has been made. G4S said it "welcomed" the development as an opportunity to "urgently address" the problems.