The Blue Knight (1975)

After many years of service with the LAPD, Bumper Morgan remains a uniformed officer who walks a beat every day. This is not to denigrate his abilities as a policeman, since he has often been offered promotions, Bumper prefers his life on the street. He knows everyone in his neighborhood, and is even willing to overlook minor transgressions if it helps keep the streets of Los Angeles relatively safe.