Dr Christopher Ward SC and Madeleine Bridgett appeared for the successful applicant in a habeas corpus application made on an urgent basis to the Federal Circuit and Family Court of Australia in GMZ18 v Minister for Immigration, Citizenship and Multicultural Affairs [2024] FedCFamC2G 335. The Court found that the applicant’s immigration detention was unlawful and ordered the immediate release of the applicant. This case considers the effect of the judgments in Chu Kheng Lim v The Minister for Immigration, Local Government and Ethnic Affairs (1992) 176 CLR 1 and NZYQ v Minister for Immigration, Citizenship and Multicultural Affairs [2023] HCA 37, including the scope of the constitutional limit to lawfully detain. The Court concludes that the relevant principle in Lim as espoused in NZYQ applies. The judgment can be found here.