The CCC was established in 2004 to improve the integrity of, and to reduce the incidence of misconduct in, the Western Australian public sector and to assist the WA Police Force to combat and reduce the incidence of organised crime. At that time, the powers given under the Corruption and Crime Commission Act 2003 were the most extensive of any anti-corruption agency in Australia.
On 1 July 2015, proclamation of the Corruption, Crime and Misconduct Act 2003 focused the CCC on more serious misconduct, criminal and corrupt behaviour. Responsibility for minor misconduct and public sector education and prevention was transferred to the Public Sector Commission.
On 1 September 2018, amendments to the Criminal Property Confiscation Act 2000 and the Corruption, Crime and Misconduct Act 2003 conferred on the CCC a new unexplained wealth function. The new function enables the CCC to investigate unexplained wealth and criminal benefits, and to initiate and conduct civil confiscation proceedings in the Supreme or District courts.
The CCC has been served by the following Commissioners:
- October 2025 —Current, Hon Michael Corboy SC
- April 2015 — June 2025, Hon John McKechnie AO, KC
- November 2011 — April 2014, Mr Roger Macknay, KC
- May 2007 — January 2011, Hon Len Roberts-Smith, RFD, KC
- December 2003 — March 2007, Mr Kevin Hammond, AO
On 15 March 2024, amendments to the Corruption, Crime and Misconduct Act 2003 introduced the position of Deputy Commissioner into the legislation. The Hon Michael Corboy SC was appointed as the inaugural Deputy Commissioner on 25 July 2024 until his appointment to the position of Commissioner on 31 October 2025.
A process to fill the position of Deputy Commissioner will be run in due course by the office of the Attorney General.