1(1)Where a person born in the United Kingdom after commencement would, but for this paragraph, be born stateless, then, subject to sub-paragraph (3)—U.K.
(a)if at the time of the birth his father or mother is a citizen or subject of a description mentioned in sub-paragraph (2), he shall be a citizen or subject of that description; and accordingly
(b)if [he is born legitimate and] at the time of the birth each of his parents is a citizen or subject of a different description so mentioned, he shall be a citizen or subject of the same description so mentioned as each of them is respectively at that time.
(2)The descriptions referred to in sub-paragraph (1) are a [British overseas territories citizen], a British Overseas citizen and a British subject under this Act.
(3)A person shall not be a British subject by virtue of this paragraph if by virtue of it he is a citizen of a description mentioned in sub-paragraph (2).