This is a track from a live Frank Zappa album where Sting comes out and performs a superb version of “Murder By Numbers”, the last track on the 1983 release “Synchronicity”

It happens to be my favorite song by The Police [there are close – very close – runners up like “Message In a Bottle” and “Hungry For You”] and while the original studio recording is essentially the last released song The Police did as a band together, it stands as a very controversial song, as Sting eludes to in the opening of the above Frank Zappa track.