MZXCV & Ors v MIMA & Anor

The applicants, MZXCV and others, sought judicial review of decisions made by the Minister for Immigration and Multicultural Affairs (MIMA) and the second respondent, concerning the refusal of their applications for protection visas. The matter came before the High Court of Australia.

The central legal issue before the High Court was whether the Minister's delegate had failed to consider relevant considerations and had taken into account irrelevant considerations when assessing the applicants' claims for protection visas. Specifically, the applicants argued that the delegate had not properly considered the risk of harm they would face if returned to their country of origin, and had instead focused on aspects of their claims that were not germane to the assessment of their refugee status.

The High Court examined the principles governing the exercise of administrative power under the *Migration Act 1958* (Cth) and the *Administrative Decisions (Judicial Review) Act 1977* (Cth). Their Honours applied the established legal principles that an administrative decision-maker must consider all relevant considerations and disregard irrelevant ones. In this instance, the Court found that the delegate had failed to give adequate weight to the evidence presented by the applicants regarding the real chance of persecution they faced, thereby failing to consider a relevant consideration. Conversely, the delegate had improperly focused on the applicants' alleged lack of credibility in certain aspects of their evidence, which was not a determinative factor in assessing the risk of harm.

The High Court allowed the appeal, quashed the decisions of the delegate, and remitted the applications for protection visas to the Minister for redetermination according to law.