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Australia Leading Case separation of powersgrounds illegality

NZYQ v Minister for Immigration, Citizenship and Multicultural Affairs

(2023) 97 ALJR 1005
JurisdictionAustralia
CourtHigh Court of Australia
Year2023
StatusBinding authority

Summary

Indefinite administrative detention of a non-citizen with no real prospect of removal is unlawful as punitive and contrary to Ch III of the Australian Constitution, overruling Al-Kateb v Godwin.

Key Principle

The HCA held that indefinite administrative detention of a non-citizen who has no real prospect of removal is unlawful; such detention is punitive and thus a breach of Chapter III of the Constitution (overruling Al-Kateb v Godwin).

Area of Law

constitutional

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Farm Transparency International v NSW (2022) 276 CLR 81

HCA upheld NSW ag-gag laws as valid notwithstanding a burden on the implied freedom of political communication, applying the structured proportionality test.

Palmer v Western Australia (2021) 272 CLR 505

HCA upheld WA COVID-19 border closure legislation as valid under s.92, finding restrictions on interstate movement were reasonably necessary and proportionate to protect public health.

Minister for Home Affairs v Benbrika (2021) 272 CLR 68

High Court upheld constitutional validity of continuing detention order for convicted terrorist under Chapter III, finding preventive detention by court order consistent with judicial power.

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