Mary Beth Buchanan

Partner at Bryan Cave LLP

Mary Beth Buchanan is a partner in the New York office of Bryan Cave, and part of the firm’s White Collar Defense and Investigations and Securities Litigation and Enforcement Client Service Group. She concentrates her practice on internal investigations, corporate compliance, white collar criminal defense, foreign corrupt practices violations, corporate and accounting fraud, antitrust litigation, health care fraud, SEC enforcement matters, Congressional investigations and complex civil litigation.

Ms. Buchanan served as the United States attorney for the Western District of Pennsylvania from September 2001 to November 2009, having been appointed by President George W. Bush.  As the U.S. attorney, Ms. Buchanan oversaw the prosecution of more than 5,000 cases, including corporate and securities fraud, bank fraud, foreign corrupt practices, false claims, money laundering, health care fraud, public corruption and a broad range of violent crimes.  Prior to that time, Ms. Buchanan spent more than 13 years as an assistant U.S. attorney litigating criminal, civil and appellate cases.

Ms. Buchanan joined the U.S. Attorney’s Office for the Western District of Pennsylvania in 1988.  She spent her first five years as an assistant U.S. attorney in the Civil Division, and the next nine years in the Criminal Division.  During her tenure as the U.S. attorney, she also had assignments at the DOJ, including serving as the director of the Executive Office for U.S. Attorneys, acting director of the DOJ’s Office on Violence Against Women and chair of the Attorney General’s Advisory Committee. Buchanan also served on the U.S. Sentencing Commission’s Organizational Guidelines Advisory Committee, which made recommendations to the Commission for amendments to the Sentencing Guidelines for Business Organizations.

Ms. Buchanan joined Bryan Cave from the United Nations, where she served as the ethics and reputational risk officer. Buchanan conducted the United Nations’ first ethics and reputational risk assessment for U.N. Peacekeeping and Special Political Operations.  She received a J.D. from the University of Pittsburgh School of Law and a B.S. from California University of Pennsylvania.