The State of Western Australia v Sandon [No 3]

The Supreme Court of Western Australia considered an application by the State of Western Australia to impose a restriction order on Mathew John Sandon under the High Risk Serious Offenders Act 2020 (WA). Sandon had an extensive criminal record, including convictions for aggravated robbery and other violent offences. The State sought a supervision order to ensure adequate protection of the community against the risk that Sandon would commit further serious offences. The court heard expert evidence from Dr Edward Petch, a Consultant Forensic Psychiatrist, and Ms Julie Hasson, a Forensic Psychologist, among others. The experts assessed Sandon as a high risk of committing serious violent offences due to his untreated ADHD, substance use disorder, and personality disorders. The court found Sandon to be a high-risk serious offender and determined that he would substantially comply with the standard conditions of a supervision order. The court imposed a supervision order for a period of two years, effective from 31 May 2023, with additional conditions to ensure the protection of the community.