Karen Patton Seymour is a partner of Sullivan & Cromwell LLP, where she heads up the Criminal Defense and Investigations Group. Her practice focuses on white collar criminal defense and internal investigations. She has represented clients in state and federal investigations and proceedings involving allegations of securities fraud, money laundering, obstruction of justice, insider trading, violations of the Foreign Corrupt Pratices Act, health care fraud and criminal violations. Ms. Seymour served as Chief of the Criminal Divisions of the U.S. Attorney's Office for the Southern District of New York from February 2002 through November 2004. In that capacity, she oversaw all criminal investigations and prosecutions in the District, including the investigations of corporate fraud involving WorldCom, Adelphia, and ImClone. She was lead trial counsel for the Government in the prosecution of Martha Stewart and Peter Bacanovic. Ms. Seymour also served in the U.S. Attorney's Office from 1990-1996, during which she served as Chief of the General Crimes Unit and Deputy Chief of the Narcotics Unit.