"Testimony of Evil (Dead Men Don't Laugh)" is the sixth and final episode of the short-lived TV series Police Squad!. The episode was directed by Joe Dante and written by Tino Insana and Robert Wuhl. The episode was produced by Robert K. Weiss.
A struggling comedian (played by Danny Dayton) owes money to the owner of a nightclub. Following the discovery of the comedian's body at the bottom of a cliff in a car crash, it is initially believed that said accident was a suicide. However, it is later discovered that the comedian was also a police informant on a drug ring he infiltrated at his nightclub. Frank (Leslie Nielsen) intervenes and takes the place of the deceased at the nightclub in order to investigate further.