DCD16 v Minister for Immigration

This matter concerned an application for a visa under the *Migration Act* 1958 (Cth). The applicant, DCD16, sought judicial review of a decision made by the Minister for Immigration. The central dispute revolved around whether the Minister's decision-making process, specifically concerning the grant of a visa, was subject to the principle of unreasonableness as established in *Associated Provincial Picture Houses Ltd v Wednesbury Corporation* [1948] 1 KB 223.

The court was required to determine whether the *Wednesbury* principle of unreasonableness applied to the Minister's decision-making in relation to visa grants under the *Migration Act*. This involved considering the nature of the Minister's powers and obligations under section 65 of the Act, which mandates the grant of a visa if certain criteria are met, and the extent to which discretionary powers within the administrative process might attract the *Wednesbury* standard.

The court reasoned that *Wednesbury* unreasonableness has no application to the decision to grant or refuse a visa under the *Migration Act* because section 65 of the Act imposes a mandatory obligation to grant a visa if specified criteria are satisfied. The satisfaction of these criteria is a question of fact for the decision-maker, and there is no discretion to grant or withhold a visa once those factual conditions are met. However, the court acknowledged, referencing *Minister for Immigration and Citizenship v Li* [2013] HCA 18, that discretionary powers exercised during the administrative process of considering a visa application, such as the power to adjourn proceedings, may attract the *Wednesbury* standard of unreasonableness. Such discretion must be exercised reasonably, avoiding arbitrary or capricious conduct, and must not be disproportionate to the purpose it serves.