Plaintiff M79 of 2012 v Minister for Immigration and Citizenship

The plaintiff, identified as M79 of 2012, challenged a decision of the Minister for Immigration and Citizenship concerning the plaintiff's immigration status. The matter came before Hayne J of the High Court of Australia.

The central legal issue before the Court was whether the Minister's decision to refuse to grant a protection visa to the plaintiff was affected by jurisdictional error. This involved an examination of the Minister's obligations under the *Migration Act 1958* (Cth) and the *Migration Regulations 1994* (Cth) in assessing claims for protection.

Hayne J considered the nature of the Minister's duty in making such decisions, particularly in light of the High Court's previous pronouncements on jurisdictional error. The Court's reasoning focused on whether the Minister had failed to exercise the power conferred upon them by law, or had exercised that power in a manner not permitted by law. This involved a careful analysis of the evidence before the Minister and the steps taken in reaching the decision. The Court affirmed that a failure to consider relevant considerations or an consideration of irrelevant considerations could constitute jurisdictional error.

The Court found that the Minister's decision was affected by jurisdictional error and accordingly made orders quashing the decision.