There is a great scene done without a stitch of supporting music. Stevens needs evidence from Widmark's gun to help convict him. Under noir, he returns to the gang's hideout, the basement over Widmark's boxer training gym. Widmark arrives and is suspicious of a light in the lower level. Stevens escapes with Widmark always a few steps late to identify him. In his retreat, Stevens glances a boxer's punching bag and the subsequent chain creaking as the hanging bag swings back and forth is the only sound hears as Widmark silently investigates.
It is a pretty exciting ending after Steven's fingerprints from Widmark's gun are identified and the FBI man's future looks short. On Widmark's plan, the police arrive at a prearranged warehouse robbery with instructions to kill the identified Stevens. A case of mistaken identity kills one gang member and to the kingpin's surprise, all guns are instructed to fire his direction. The dirty police official feels pretty smug assuming he has tied up all loose ends. The truth shall not set him free.