"Sting operation"

My wife, Wolfie and me were walking a few days ago and we crossed two police officers in uniform discussing. One was explaining something to the other and was saying: "So we are about to execute a sting operation..." We were surprised at hearing like this a police officer discussion strategy in the street. Although we didn't hear more details about it. As you may know sting operation is a deceptive operation using undercover police officers to lure suspects into incriminating themselves. It's often used in crime fiction, and I hope that this brief and accidental eavesdropping will inspire my own writing. In any case, this is the word of the day.