Bill Bratton was appointed chairman of Kroll, a business of Altegrity, Inc. in September 2010 following Altegrity's acquisition of Kroll. Kroll is the world's leading risk consulting company. Bratton joined Altegrity in November 2009 as chairman of Altegrity Risk International where he consulted on security for criminal justice agencies worldwide. Prior to joining Altegrity, Bratton served as chief of the Los Angeles Police Department (LAPD) from October 2002 to October 2009. From 1994 to 1996, he served as commissioner of the New York City Police Department. Prior to the NYPD appointment, Bratton served as head of a number of other police agencies including commissioner of the Boston Police Department, chief of police of the New York City Transit Police Department, superintendent of the Massachusetts Metropolitan District Commission of Police and chief of police for the Massachusetts Bay Transportation Authority. From 1996 until his appointment as LAPD chief, Bratton worked in the private sector and, in 2000, formed the Bratton Group, LLC, which consulted extensively in the United States and Latin America on policing, public safety and rule-of-law initiatives. During this period Bratton also served as senior consultant to Kroll?s Public Services Safety Group and Crisis and Consulting Management Group. A frequent lecturer, writer and commentator in the fields of security, counterterrorism, law enforcement and rule-of-law systems, Bratton is vice chairman of the Homeland Security Advisory Council. He holds a bachelor?s degree in law enforcement from Boston State College/University of Massachusetts, and is a graduate of the Senior Executive Fellows Program at Harvard?s John F. Kennedy School of Government.