Found this at White Rose Society link from another discussion.
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When Adolf Hitler rose to power, he deemed the current judicial system too lenient - or perhaps not loyal enough - and he instituted the "National Socialist People's Court" - the Volksgerichtshof (VGH). The VGH dealt solely with cases of treason against Hitler and the Nazis. Roland Freisler, the spirited lawyer and admirer of Hitler, was VGH president from 1942 until his death in 1945. Under Freisler, the VGH convicted thousands for political actions, speech and expressed thoughts that it considered treasonous. The definition of treason was flexible and, in most cases, defense in the courtroom was futile. Guilty verdicts were generally a foregone conclusion and death sentences (which were prevalent in these cases) were carried out within hours of the verdict.
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Belittling, impatient, loud, verbose and anything but just, Freisler's outbursts in the courtroom are legendary: they have been recounted and corroborated by eye-witnesses and, more importantly, his prolonged outbursts have been captured on film. Because of his volatile temperament on the bench, Freisler was commonly referred to as "Raving Roland" and he proved, on occasion, to be an embarrassment to the Nazis.
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http://www.jlrweb.com/whiterose/freisler.html