Truong - Ex parte MIMA

The applicant, Mr. Truong, sought judicial review of a decision made by the Minister for Immigration and Multicultural Affairs (MIMA). The dispute concerned the Minister's decision to refuse to grant Mr. Truong a protection visa. The application was heard by Hayne J in chambers.

The primary legal issue before the court was whether the Minister's decision to refuse the protection visa was affected by an error of law, specifically whether the Minister failed to consider relevant considerations or took into account irrelevant considerations when making the decision. This involved an examination of the scope of the Minister's obligations under the Migration Act 1958 (Cth) and the principles of administrative law concerning the proper exercise of discretionary powers.

Hayne J found that the Minister's delegate had failed to consider a significant portion of the evidence provided by the applicant, which was relevant to the assessment of his claims for protection. This failure constituted an error of law, as it meant the delegate did not properly consider all relevant considerations before making the decision. The court applied the principle that administrative decision-makers must genuinely consider all material before them that is relevant to the exercise of their statutory power.

The court made orders quashing the decision of the Minister and remitting the application for a protection visa to the Minister for reconsideration according to law.