Hogan helps prove the German officer that Klink is defending innocent of treason so he can get the plans that he had stolen for the Allies.
Did You Know?
The accused German officer in this case is named Colonel Hugo Hauptmann. Hauptmann is the German name for the Army rank of Captain. In other words, his name means Colonel Captain. See more
The recordings are on wire. In order to edit the recordings the wire would have to be cut and modified. To do this on a wire recorder the ends of the wire are knotted together, when the knots pass though the playback head there would be an audible "click", something that would be obvious to the listeners. The knots would be visible to anyone who examined the recording. See more
Maj. Wolfgang Hochstetter
The gestapo never arrests the wrong man. It is against the rules.
References Judd for the Defense