NZYQ v Minister for Immigration, Citizenship and Multicultural Affairs & Anor

The High Court of Australia considered the case of NZYQ (the applicant) against the Minister for Immigration, Citizenship and Multicultural Affairs and the Minister for Home Affairs (the respondents). The dispute concerned the lawfulness of the applicant's detention and the validity of the Minister's decision to refuse to grant a protection visa. The applicant, a citizen of China, had arrived in Australia by boat in 2012 and had been detained since that time.

The central legal issues before the High Court were whether the applicant's continued detention was lawful under section 189 of the *Migration Act 1958* (Cth) and, if not, what consequences flowed from that unlawliulness. Specifically, the Court had to determine whether the applicant's detention was rendered unlawful by the fact that there was no real possibility of the applicant being removed from Australia to a country that would accept him, and whether the Minister's decision to refuse the protection visa was affected by jurisdictional error.

The Court reasoned that the applicant's detention was rendered unlawful by the fact that there was no real possibility of his removal from Australia. This was because the evidence established that no country was reasonably likely to accept his removal. Consequently, the Minister's decision to refuse the protection visa was vitiated by jurisdictional error, as it was made on the erroneous assumption that the applicant could be removed from Australia. The Court applied principles of administrative law concerning the lawfulness of detention and the consequences of jurisdictional error in visa refusal decisions.

The High Court ordered that the applicant be released from detention and that the Minister's decision refusing the protection visa be quashed. The matter was remitted to the Minister for reconsideration according to law.