Plainclothes policemen are often deployed during demonstrations to suppress violence. At that point, three uniformed officers and the two plainclothes officers had surrounded him. It is used to assist in the identification of plainclothes police officers by uniformed officers. Plainclothes policemen bring Margot from prison to the flat. Undercover agents should not be confused with law enforcement officers who wear plainclothes. Upon exiting a cafe, Chikatilo was arrested by four plainclothes police officers. Contrast plainclothes law enforcement and undercover operations. Panicking, they leave the scene but are noticed by plainclothes police officers. Sandy Kenyon as a local sheriff and Ken Lynch as a local plainclothes police detective. Everyone else such as plainclothes police officers is issued an Identification Certificate. Responding to the call was an unmarked car with three plainclothes officers (Sgt. McNulty finds Prez standing over what turns out to be a dead plainclothes police officer. Two plainclothes officers entered the group's dressing room demanding they inspect the prop. He tells her that they still have plainclothes officers watching the house. The officers, dressed in plainclothes, approached the house at about seven in the evening.