Ferdinand Piech, Chairman of the Board of German car giant Volkswagen AG is protected by court security as he arrives for a trial at the district court in Brunswick (Braunschweig), January 9, 2008. Piech has been asked to appear as witness in the case against Volkswagen's former personnel manager Klaus-Joachim Gebauer and former workers council chairman Klaus Volkert around allegations that high-ranking VW managers and labour leaders conspired to use company funds to pay for perks including sex trips as part of an institutionalised system of bribery. REUTERS/Fabrizio Bensch (GERMANY)