"Failures of G4S have impacted upon day-to-day policing in GMP as officers are being dragged away from normal duties.
"It is a disgrace that thanks to G4S, Greater Manchester Police's communities are losing their local police officers.
"Our officers are being sent at a moment`s notice to underpin a security operation that is rapidly achieving the status of a farce.
"I am only glad we have still got enough officers to plug the gap for G4S Olympics staff who didn't turn up to Manchester venues."
A Merseyside representative of retired police has attacked G4S, saying the security firm told them they are "surplus to requirements".
Armed police have been called in to plug a shortfall in security at a hotel used by Olympic athletes in Manchester.