Switzerland. The Republic and Canton of Neuchâtel. La Chaux-de-Fonds. Railway station. Narcotics squad. "Narko" operation. A group of police officer in plain-clothes control the identity of a drug user looking for illegal substances (cannabis, cocaine, heroine or methamphetamine). A police officer is strip searching the man in the local belonging to the train station cleaners' unit. A strip search is a practice of searching a person for weapons or other contraband suspected of being hidden on their body or inside their clothing by requiring the person to remove some or all of his clothing. The strip search is a mandatory procedure which requires legal authority. Plainclothes law enforcement is a method used by police. The policemen wear plainclothes or "ordinary clothes" instead of a uniform in order to avoid detection or identification as law enforcement agents. Police officers in plainclothes must identify themselves when using their police powers. 1.04.15 © 2015 Didier Ruef