** FILE ** The then chief executive of the German state-owned bank WestLB AG, Thomas Fischer, who stepped down in July in a leadership change amid massive trading losses in speculative transactions, is seen prior to a hearing at the state parliament in Duesseldorf, Germany, in this April 19, 2007 file photo. Prosecutors in Duesseldorf are investigating seven current and former executives of WestLB AG, a spokesman said Wednesday, Aug. 29, 2007. The suspects were suspected of violating Germany's companies law in connection with massive losses in speculative transactions earlier this year. Fischer was named by prosecutors as one of those being investigated. (AP Photo/Frank Augstein)