Preamble to the Constitution Act, 1867

The Preamble to the Constitution Act, 1867 provides:

Whereas the Provinces of Canada, Nova Scotia, and New Brunswick have expressed their Desire to be federally united into One Dominion under the Crown of the United Kingdom of Great Britain and Ireland, with a Constitution similar in Principle to that of the United Kingdom:

And whereas such a Union would conduce to the Welfare of the Provinces and promote the Interests of the British Empire:

And whereas on the Establishment of the Union by Authority of Parliament it is expedient, not only that the Constitution of the Legislative Authority in the Dominion be provided for, but also that the Nature of the Executive Government therein be declared:

And whereas it is expedient that Provision be made for the eventual Admission into the Union of other Parts of British North America:[1]

This has had a significant impact on constitutional jurisprudence concerning the nature of Canadian Confederation and the independence of the Canadian courts.