Plaintiff S295-2006 v MIMA & Anor

The High Court of Australia heard an appeal concerning the detention of a non-citizen, identified as Plaintiff S295-2006, by the Minister for Immigration and Multicultural Affairs (MIMA) and the Commonwealth of Australia. The plaintiff sought a writ of habeas corpus, challenging the lawfulness of his continued immigration detention.

The central legal issue before the Court was whether the plaintiff's detention was authorised by law, specifically in light of the High Court's previous decision in *Al-Kateb v Godwin*. The Court was required to determine if the plaintiff's circumstances, including his inability to depart Australia and the absence of any prospect of removal, rendered his detention unlawful under the Migration Act 1958 (Cth).

Gleeson CJ, applying the principles established in *Al-Kateb v Godwin*, held that the Migration Act provided a continuing legal basis for the detention of non-citizens who could not be removed from Australia. His Honour reasoned that the statutory power to detain remained operative even where removal was not practically possible, as the detention served the purpose of the Act, which included the management of non-citizens within the immigration system. The Court therefore found that the plaintiff's detention was lawful.