Klaus Zumwinkel, CEO of German postal and logistics group Deutsche Post AG addresses the company's annual news conference in Bonn in this March 14, 2006 file photo. Police raided the home and offices of Deutsche Post Chief Executive Klaus Zumwinkel February 14, 2008, a source close to the investigation told Reuters.German media reported earlier on Thursday that prosecutors were investigating Zumwinkel in relation to suspected tax evasion. REUTERS/Ina Fassbender/files | Foto: Reuters