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Our people

The Commissioner is supported by the Deputy Commissioner, an executive team, and dedicated and hardworking employees.

The Commissioner

The Hon. Ann Vanstone QC

Independent Commissioner Against Corruption, the Honourable Ann Vanstone QC​On 27 July 2020 it was announced that former Supreme Court Justice, the Honourable Ann Vanstone QC, would be South Australia’s second Independent Commissioner Against Corruption (ICAC).

Commissioner Vanstone was admitted as a Barrister and Solicitor of the Supreme Court of South Australia in 1978. She was appointed Deputy Crown Prosecutor in 1988 and, upon the establishment of the Office of the Director of Public Prosecutions in 1992, Deputy Director.

In 1994 she was appointed Queen’s Counsel. Later in 1994, Commissioner Vanstone left the Director’s office and joined the Independent Bar, where she took briefs in a number of areas. In 1999 she was appointed a Judge of the District Court of South Australia. In 2003 Judge Vanstone was appointed a Justice of the Supreme Court of South Australia. She remained a Justice of that Court until she resigned in 2019.

Commissioner Vanstone commenced her term as Independent Commissioner Against Corruption on 2 September 2020. Her appointment is for a term of seven years.

Commissioner Vanstone is also South Australia’s Judicial Conduct Commissioner. The Commissioner carries out that role concurrently with her role as the ICAC.


Deputy Commissioner

Michael Riches

Photo of the Chief Executive Officer, Michael RichesMichael Riches was appointed Deputy Independent Commissioner Against Corruption by the Governor in Executive Council on 25 October 2018.

Prior to his appointment as Deputy Independent Commissioner Against Corruption he was the Chief Executive Officer of the ICAC and the OPI.

Michael holds an Honours Degree in Law and Legal Practice, a Degree in Arts and a Diploma in Public Safety.

He commenced his career as a project officer and later a project manager in the Crime Prevention Unit of the Attorney-General’s Department. During that time Michael worked on a number of projects including the management of a multi-site project aimed at reducing the incidence of domestic violence.

After recruit training at the Police Academy, Michael spent almost nine years as a South Australian police officer. He worked in a number of operational and corporate roles, including general duties policing, tactical teams, police communications and media liaison.

After obtaining a Bachelor of Law and Legal Practice from Flinders University, Michael worked as a solicitor in the Police Legal Branch before moving to the Crown Solicitor’s Office, where he worked in the Civil Litigation Section, Advising Section and as counsel in the Crown Counsel Section. He has advised state government agencies in a wide variety of matters and has appeared as counsel in a number of cases, including several high profile coronial inquests. He also worked part time as a tutor in the University of Adelaide Law School.

As a member of the Public Integrity Reform team, Michael took a lead role in the establishment of the office of the Independent Commissioner Against Corruption and the Office for Public Integrity. When those offices commenced he took up a position as a senior legal officer before being appointed Director of Legal Services and Reviews.  In December 2016 Michael was appointed Chief Executive Officer of the ICAC and the OPI.

He took up his position as Deputy Independent Commissioner Against Corruption on 26 October 2018.

The Commissioner's leadership team

Director Legal Services

Rod Jensen

Rod Jensen is Director Legal Services for the Independent Commissioner Against Corruption.

Rod has both undergraduate and postgraduate degrees in law from the University of Adelaide.

Rod has specialist knowledge in criminal law having worked at various times as a defence lawyer and a State Prosecutor. Rod also worked for a number of years in Canberra as a Federal Prosecutor and then as General Counsel for the Australian Criminal Intelligence Commission.

Director Investigations

Andrew Baker

Andrew Baker has worked in law enforcement for 27 years. He commenced his career as a South Australia Police officer in general uniform policing before being promoted to Detective. He has worked in various criminal investigation units including major fraud and internal investigations. Andrew also spent two years working in the United Kingdom as an Anti-Piracy Senior Investigator. 

He commenced with the ICAC in 2013 as a senior investigator before being appointed Manager Investigations. Andrew was appointed Director Investigations on 1 July 2016. 

Director Office for Public Integrity

Emily Lyons

Emily holds degrees in law and psychology from the University of Adelaide and has been admitted as a legal practitioner in the Supreme Court of South Australia.

After a short time with the Department of Immigration and Border Protection Emily joined the Office for Public Integrity (OPI) in 2014. Since that time Emily has undertaken a variety of roles within the organisation and has been a member of ICAC’s management team since 2017.

Emily was appointed as Director Office for Public Integrity in April 2020.

Director Prevention and Communications

Tracy Riddiford

Tracy spent her early career working in film and television, where she performed various roles including sales, marketing and communications, management, and production. She later established a publishing company that specialised in the production and publishing of drama based education content. Tracy wrote, produced and directed many award winning educational films and curriculum for international distribution. She has also Co-Produced and Executive Produced documentaries for broadcast television.

Tracy is a graduate of Flinders University with a Bachelor of Justice. She joined the management team of the Independent Commissioner Against Corruption in 2013 and leads the Commissioner’s communications, education and research agenda.

Director Corporate Services

Vicki Tomlinson

Vicki has tertiary qualifications in financial accounting, business (commercial law) and human resource management. She has experience in local and state government, and workers compensation, where she has performed in various leadership and project management roles.

She is an experienced systems thinker with strengths in communications, finance, people leadership and technology.

Vicki joined the Independent Commissioner Against Corruption in 2014 and continues to lead corporate support and governance for the ICAC and the OPI.