Statute of Westminster 1931

4 Parliament of United Kingdom not to legislate for Dominion except by consent.U.K.

No Act of Parliament of the United Kingdom passed after the commencement of this Act shall extend, or be deemed to extend, to a Dominion as part of the law of that Dominion, unless it is expressly declared in that Act that that Dominion has requested, and consented to, the enactment thereof.