BES16 v Minister for Immigration and Border Protection & Anor

The High Court of Australia considered the case of BES16 (the applicant) against the Minister for Immigration and Border Protection and the Australian Security Intelligence Organisation (the respondents). The dispute concerned the lawfulness of the applicant's detention under s 189 of the *Migration Act 1958* (Cth) and the validity of a decision made by the Minister under s 501(3) of the Act to refuse to grant the applicant a visa on character grounds. The applicant sought judicial review of these decisions.

The central legal issues before the High Court were whether the Minister's decision to refuse the visa under s 501(3) was vitiated by jurisdictional error, and consequently, whether the applicant's continued detention under s 189 was lawful. Specifically, the Court had to determine if the Minister's assessment of the risk posed by the applicant, which formed the basis of the s 501(3) decision, was affected by an error of law.

The High Court held that the Minister's decision under s 501(3) was affected by jurisdictional error. The Court reasoned that the Minister had failed to properly consider the evidence before them, particularly concerning the applicant's rehabilitation and the potential for future risk. By misapprehending or failing to give adequate weight to crucial aspects of the evidence, the Minister's decision did not conform to the requirements of the statutory power conferred by s 501(3). This jurisdictional error meant that the Minister's decision was invalid. As a consequence of the invalidity of the visa refusal, the basis for the applicant's detention under s 189 of the *Migration Act* ceased to exist.

The High Court ordered that the appeal be allowed, the orders of the Federal Court be set aside, and that declarations be made that the Minister's decision under s 501(3) was affected by jurisdictional error and that the applicant's detention was unlawful.