King-in-Parliament

The Queen-in-Parliament (or, during the reign of a male monarch, King-in-Parliament), sometimes referred to as the Crown-in-Parliament or, more fully, in the United Kingdom, as the King/Queen in Parliament under God, is a technical term of constitutional law in the Commonwealth realms that refers to the Crown in its legislative role, acting with the advice and consent of the parliament (including, if the parliament is bicameral, both the lower house and upper house). Bills passed by the houses are sent to the sovereign, or governor-general, lieutenant-governor, or governor as her representative, for Royal Assent, which, once granted, makes the bill into law; these primary acts of legislation are known as acts of parliament. An act may also provide for secondary legislation, which can be made by the Crown, subject to the simple approval, or the lack of disapproval, of parliament.

The concept of the Crown as a part of parliament is related to the idea of the fusion of powers, meaning that the executive branch and legislative branch of government are fused together. This is a key concept of the Westminster system of government, developed in England and used across the Commonwealth and beyond. It is in contradistinction to the idea of the separation of powers. The specific language of "the Crown", "the King", or "the Queen" in parliament used in the Commonwealth realms also alludes to the constitutional theory that ultimate authority or sovereignty rests with the monarch, but is delegated to elected and/or appointed officials. In federal realms of the Commonwealth, the concept of the Crown-in-the-legislature only applies to those units which are considered separate divisions of the monarchy, sovereign within their own sphere, such as Australian states or the Canadian provinces. (By contrast to states or provinces, no equivalent constitutional concept exists in the territories of Australia and Canada, which are not sovereign.) The legislature of a territory does not receive its authority directly from the monarch, being instead delegated by the federal parliament. Similarly, with city councils and other local governments in the Commonwealth, the idea of the Crown-in-council is not used, as the authority of local governments is derived from a charter or act that can be unilaterally amended by a higher level of government.

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