A description of legislative frameworks for mentally ill offenders found not criminally responsible across Australia and New Zealand

OBJECTIVE: Forensic Orders (FOs) are the primary legal mechanism by which individuals found not guilty by reason of 'insanity' are diverted from criminal justice into forensic mental health care. Although grounded in shared principles, the legislations and operation of FOs vary considerably across jurisdictions. This study compares legislative frameworks governing the management of individuals found not guilty by reason of 'insanity' across Australia and New Zealand (NZ). METHOD: We compared primary legislation governing FOs in all Australian jurisdictions and NZ. Provisions concerning the making, duration, review, variation, and transition between inpatient and community orders were extracted, interpreted, and summarised. RESULTS: Substantial interjurisdictional variation was identified in decision-making authority, detention settings, duration, review processes, and transition pathways of FOs. Despite these differences, common principles were evident, including the use of FOs for both therapeutic intervention and risk management; the imposition of conditions to support treatment and mitigate risk; and the preservation of clinical autonomy in treatment decisions. CONCLUSION: These legislative differences have significant implications for clinical practice, procedural fairness, and transparency. Greater articulation of shared principles may support more coherent and equitable forensic mental health systems.