21ST CENTURY RELATIONSHIPS: Couple Had Sex In Back Seat Of Police Cruiser. “After being arrested, a Wisconsin couple had sex in the back of a police cruiser, an encounter that was interrupted when a cop heard the woman ‘begin to moan loudly’ while her legs were ‘touching the ceiling’ of the vehicle, according to a criminal complaint.”

Well, to a trained investigator that sort of clue is unmistakable.