Paragraph 1
A person born before the commencement of the principal Act is qualified for registration under section 1 of this Act by parentage if—
his mother was a British subject at the time when he was born or a person who, by virtue of section 14 of that Act, is deemed (or would but for her death be deemed) to have been a British subject immediately before the commencement of that Act; or
his father or mother was a person who, by virtue of section 15 or 17 of that Act, is deemed (or would but for his or her death be deemed) to have been a British subject immediately before the commencement of that Act;
and, in either case, the relevant parent became (or would but for his or her death have become) a citizen of the United Kingdom and Colonies at the commencement of that Act.
For the purposes of sub-paragraph (1)(a) above a person who by the law in force in any colony or protectorate enjoyed the privileges of naturalisation within that colony or protectorate only shall be treated as having been a British subject.