An undercover operation is a type of law enforcement activity in which an officer or agent of the law poses as someone else in order to investigate criminal activity. This type of operation is often referred to as a 'STING' and involves the use of undercover police officers, also known as 'police stingers'. The term 'police STING' is used to describe a specific type of undercover operation in which police officers pose as criminals in order to catch suspects in the act of committing a crime. In addition, police STING operations can also involve the use of informants, surveillance, and other tactics in order to gather evidence and build a case against a suspect.