TGN v MCN and the Public Advocate

This case involved an appeal to the Supreme Court of South Australia by the applicant, TGN, against a decision of the Guardianship Board (the Tribunal) which dismissed her application to vary or revoke the guardianship order appointing the Public Advocate as the full-time guardian for her son, N. N suffers from severe autism, intellectual disability, and bipolar disorder. The dispute arose from the Public Advocate's decision to transition N's care to disability service providers, which the applicant opposed, leading to her applications for variation or revocation of the guardianship and administration orders.

The primary legal issue before the Supreme Court was whether the Tribunal erred in law by dismissing the applicant's application for variation or revocation of the guardianship order. Specifically, the court considered whether the Tribunal had interpreted the requirement for a "change of circumstances" under section 33(1a) of the relevant legislation too narrowly, and whether the applicant had demonstrated a change in N's circumstances that warranted a review of the guardianship order. The court also examined whether the Tribunal had adequately considered the applicant's evidence regarding N's alleged decline in mental and physical health due to the care provided by external service providers.

The Supreme Court held that the Tribunal had erred in law by failing to properly consider whether N's health and well-being constituted a "change of circumstances" within the meaning of section 33(1a). The court reasoned that a protected person's "circumstances" are not limited to their capacity to make decisions but extend to their overall health, welfare, and living arrangements. The Tribunal's apparent focus solely on N's capacity, and its dismissal of the applicant's concerns about his health decline as not constituting a change in circumstances, was considered an error. The court found that the applicant had demonstrated a reasonably arguable case that N's circumstances had changed, and therefore, her application should not have been dismissed on that basis.

The Supreme Court allowed the appeal, set aside the Tribunal's decision, and remitted the matter to the Tribunal for redetermination according to law. The court granted leave to appeal, finding that an important and generally applicable principle of law had been misapplied in the decision below.