Ironically, the National opposition prompted the adoption of the statute in 1947 when its leader, and future prime minister, Sidney Holland introduced a member's bill to abolish the Legislative Council. Because New Zealand required the consent of the British Parliament to make the necessary amendments to the New Zealand Constitution Act 1852, Peter Fraser, now Prime Minister, had a reason to finally adopt the statute. It was formally adopted on 25 November 1947 with the Statute of Westminster Adoption Act 1947, along with consenting legislation from the British Parliament.