Police ploys are tactics used by law enforcement to investigate and apprehend criminals. STINGS, which involve undercover officers posing as criminals, are used to catch suspects in the act of committing a crime. RAIDS involve a large number of officers entering a location to search for evidence or apprehend suspects. Dragnet operations involve a wide-scale search for a suspect or evidence. Sting operations are a combination of STINGS and RAIDS, where undercover officers pose as criminals and then raid a location to apprehend suspects.