The Office of Inspector General (often abbreviated to OIG) of the United States Central Intelligence Agency (CIA) is the independent overseer of the organisation.
[3] Members of the Senate Select Committee on Intelligence (especially Boren, Cohen, Specter, and Glenn) wrestled with how to improve the IG while not interfering with the work of the CIA.
[1] Senator Boren (chairman of the SSCI) worked with Robert Gates who was deputy to Brent Scowcroft at the time.
[4] In 2007 General Michael Hayden, head of the CIA, had attorney Robert Deitz review the work of the IG.
[5] After a Freedom of Information Act lawsuit by the American Civil Liberties Union, a less redacted version was declassified in 2009 and released to the public.