The demonstration ended in the arrest of 40 persons by plain clothes security officers. One plain clothes policeman had been killed. Secret Service agents in plain clothes lived in her dorm. Personnel attached to this wing essentially work in plain clothes. All three officers were in plain clothes. It is sometimes common for police officers dressed in plain clothes to patrol subway stations. Common people were often restricted to undyed plain clothes. Personnel attached to this wing work in plain clothes, or "mufti". The plain clothes detective did not arrest Horn. Plus he taught me how to spot an officer in plain clothes. MRF teams operated in plain clothes and civilian vehicles, equipped with pistols and submachine guns. Six SAS soldiers in plain clothes, including the commander, were positioned inside. Former Plain Clothes Sergeant Michael Hollingsworth died from cancer on 28 October 2018. Lam was arrested by plain clothes officers on 17 August 1982. Special agents can be uniformed or plain clothes officers.