BERLIN (REUTERS) - Wirecard's former boss stonewalled questions from lawmakers on Thursday (Nov 19) when he was temporarily released from jail for an inquiry into post-war Germany's biggest corporate fraud. Markus Braun, wearing his hallmark turtle neck and a blazer, declined to answer more than 50 questions about Wirecard's demise, other than to say no German officials behaved inappropriately. Braun, who has denied any wrongdoing and said Wirecard was the victim of a wider fraud, is in jail awaiting trial. He told lawmakers on Thursday he had confidence in the German legal system but said little else in a prepared speech. The former chief executive's stance is a setback for lawmakers investigating the implosion of a German tech star once worth US$28 billion, which folded owing billions. Braun said he had also refused to speak to Munich state prosecutors, who have charged him with fraud and embezzlement, although he pledged to cooperate with them. Some of the German parliamentarians, who were visibly irritated, resorted to posing questions of Braun such as about his family, before the hearing was temporarily disbanded. Braun's appearance, which is being closely watched in Germany a...