Badge of Evil (en Inglés) - Whit Masterson

When millionaire Linneker is murdered with dynamite, suspicion falls on his daughter's boyfriend. Veteran officers Quinlan and his partner McCoy know he's guilty and set out to prove it. And sure enough, they find some extra dynamite at the boyfriend's apartment. It looks like another successful case for Quinlan and McCoy.

But assistant district attorney Mitch Holt isn't convinced. He had interviewed the boyfriend and something just didn't match with the cops' discovery. After a little investigation of his own, he discovers the real murderer. But the way that Quinlan and McCoy conveniently found that dynamite gets Holt to thinking. If they were willing to frame the boyfriend, who else might they have framed over the years?

Film Noir Classic #15