A true story of a German prosecutor calling Hitler as a witness against a group of Brownshirts on trial for murder. Brownshirts were an organized mob of out-of-work men armed with guns left over from WWII who roamed the streets looking for the opposition to persecute, beat up, or murder.
The prosecutor wanted to show that Hitler, who was up for election, would resort to violent means to achieve his goals. He goaded Hitler until he lost control and admitted that he approved of the Brownshirt's tactics. He won the election anyhow.