Australian constitutional law

Australian constitutional law is the area of the law of Australia relating to the interpretation and application of the Constitution of Australia. Several major doctrines of Australian constitutional law have developed.

Constitutional law in the Commonwealth of Australia consists mostly of that body of doctrine which interprets the Commonwealth Constitution. The Constitution itself is embodied in clause 9 of the Commonwealth of Australia Constitution Act, which was passed by the British Parliament in 1900 after its text had been negotiated in Australian Constitutional Conventions in the 1890s and approved by the voters in each of the Australian colonies. The British government did, however, insist on one change to the text, to allow a greater range of appeals to the Privy Council in London. It came into force on 1 January 1901, at which time the Commonwealth of Australia came into being.

The Constitution created a framework of government some of whose main features, and sources of inspiration, were the following:

This last feature – the ability of The High Court of Australia to declare legislation unconstitutional and therefore invalid – is itself the source of the body of constitutional doctrine examined in this article. It has its origin in American experience, where the right of the Supreme Court of the United States to strike down legislation deemed incompatible with the Constitution was first asserted by the Supreme Court itself in the seminal case of Marbury v. Madison in 1803. Although completely foreign to both British and Australian colonial experience, the framers of the Australian Constitution clearly intended that the practice would take hold in Australia, and even expressly adverted to it in the Constitutional text (in section 76). This power of judicial review of legislation for conformity with the Constitution has been exercised almost exclusively by the High Court of Australia, and almost invariably with a Full Bench of all its members, perhaps most famously in the Communist Party case.

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