MAHESAN v Minister for Immigration

In the Supreme Court of New South Wales, the applicant, Mahesan, sought judicial review of a decision made by the Minister for Immigration. The dispute concerned the Minister's refusal to grant the applicant a visa, a decision that Mahesan contended was unlawful.

The central legal issue before the Court was whether the Minister's decision to refuse the visa was affected by an error of law. Specifically, the Court was required to consider whether the Minister had failed to take into account relevant considerations or had taken into account irrelevant considerations when making the decision.

Judge Street found that the Minister's decision-making process had indeed been flawed. The Court reasoned that the Minister had failed to give adequate weight to certain crucial factors presented by the applicant, which were relevant to the assessment of his visa application. This failure amounted to an error of law, rendering the decision invalid. The Court applied the principles of administrative law, emphasizing the duty of a decision-maker to consider all relevant material placed before them.