The purpose of the Office of the Special Investigator is to:
- review the findings of the Inspector-General of the Australian Defence Force Afghanistan Inquiry;
- work with the Australian Federal Police (AFP) to investigate the commission of criminal offences under Australian law arising from or related to any breaches of the Laws of Armed Conflict by members of the Australian Defence Force in Afghanistan from 2005 to 2016;
- develop briefs of evidence in respect of any offences that are established, for referral to the Commonwealth Director of Public Prosecutions; and
- undertake other relevant tasks the Prime Minister and the Minister require from time to time.