Constitutional law (Cth) – Powers of Commonwealth Parliament – Naturalisation and aliens – Deportation – Where appellant entered Australia before commencement of Nationality and Citizenship Act 1948 (Cth) – Where appellant born in Malta and entered Australia as British subject – Where appellant became citizen of United Kingdom and Colonies in 1949 and citizen of Malta in 1964 – Where appellant had not applied to become Australian citizen by registration under Nationality and Citizenship Act – Where appellant's visa cancelled following conviction – Whether appellant entered Australia as alien – Whether within power of Parliament to treat appellant as alien within meaning of s 51(xix) of Constitution.
Words and phrases – "alien", "alienage", "aliens power", "allegiance", "Australian independence", "British subject", "citizen", "citizenship", "Crown in right of Australia", "non-citizen", "treat as an alien".
Constitution – s 51(xix).
British Nationality and Status of Aliens Act 1914 (UK) – s 1(1)(a).
Nationality Act 1920 (Cth) – ss 5(1), 6(1)(a).
Nationality and Citizenship Act 1948 (Cth) – ss 12, 24, 25.
