They are popular refrains amongst those that push for reform within America’s policing system. “The blue will always protect their own.”“How are there any good cops when they always protect the bad ones?”Well, the San Joaquin County District Attorney’s office proved on Tuesday that neither apply in the case of the Manteca Police Department – an agency that reported the abuse of an inmate in the San Joaquin County Jail when they observed it last year. According to the video that was released on Tuesday, two Manteca Police officers witnessed Sherriff’s Office correctional officer Matthew Mettler walk up to a man who was sitting on the floor – with both his legs and his feet handcuffed – and strike him in the head.