MZXAP v MIMA & Anor

The applicants, MZXAP and MIMA, brought proceedings before the High Court of Australia concerning the interpretation and application of certain provisions of the *Migration Act 1958* (Cth) and the *Administrative Decisions (Judicial Review) Act 1977* (Cth). The core of the dispute revolved around the lawfulness of decisions made by the Minister for Immigration and Multicultural Affairs, and the subsequent review of those decisions.

The High Court was required to determine, among other things, whether the Minister's decision to refuse to grant a protection visa was affected by an error of law. Specifically, the Court considered whether the Minister had failed to take into account a relevant consideration or had taken into account an irrelevant consideration when making the decision, thereby vitiating the lawfulness of the administrative act. The Court also examined the scope of judicial review available under the *Administrative Decisions (Judicial Review) Act 1977* (Cth) in relation to such decisions.

In their joint judgment, Gummow and Heydon JJ applied established principles of administrative law, particularly concerning the grounds for judicial review of administrative decisions. They emphasised that for a failure to take into account a relevant consideration to constitute an error of law, the consideration must be one that the decision-maker was legally bound to take into account. The Court analysed the specific statutory framework governing the grant of protection visas and the nature of the Minister's obligations thereunder. Their Honours concluded that the Minister's decision was not vitiated by an error of law.

The High Court dismissed the application for judicial review.