Nice schmitte. A popular Waffen SS hero of middle class well respected by friends, grudgingly respected by enemies. He was charged with perfidy in advocating and implementing infiltrating the enemy by wearing their uniform, speaking there language infiltration techniques. I believe he was acquitted either by a technicality or his defense would have betrayed allies using his techniques. Either Way, you need friends to get acquitted from charges that carry the death penalty and the proof against you are your books and training camps.
He was acquitted when several British intel operators testified that they would have worn enemy uniforms too under similar circumstances.