Jake and the Fatman - Season 1 Episode 19

A woman who's a friend of McCabe's, has a twin sister who's a criminal. And she commits a crime and does it at the same time her sister was with McCabe. When Jake investigates and witnesses place her at the scene but because she was with McCabe, he doesn't arrest her. He tries to figure out how she does it and when he figures out about her twin sister, he arrests the twin. But at the trial, the defense dares McCabe to prove which twin was with him when the other did the crime.