DTN16 and Ors v Minister for Home Affairs and Anor

The applicants, DTN16 and others, sought judicial review of decisions made by the Minister for Home Affairs and another respondent concerning their immigration status. The core of the dispute revolved around the lawfulness of the Minister's decisions to refuse to revoke certain adverse security assessments made under section 503A of the *Migration Act 1958* (Cth). These assessments had significant implications for the applicants' ability to obtain visas and remain in Australia. The matter was heard in the Federal Court of Australia.

The primary legal issues before the Court were whether the Minister's decisions to refuse to revoke the adverse security assessments were affected by jurisdictional error. Specifically, the applicants contended that the Minister failed to undertake a proper consideration of the evidence before him, including evidence that had emerged since the original assessments were made. They argued that this failure amounted to an unlawful refusal to exercise a power vested in the Minister by the *Migration Act*.

Judge A Kelly found that the Minister's duty under section 503A of the *Migration Act* required more than a perfunctory review of the material. The Court held that the Minister was obliged to consider all relevant evidence, including any new material that might cast doubt on the continued validity of the adverse security assessment. In this instance, the Court determined that the Minister had not adequately engaged with the new evidence presented by the applicants, thereby failing to exercise his power lawfully. The Court concluded that the Minister's decisions were affected by jurisdictional error.