(1) Where this article applies to a person, the Secretary of State may give or refuse him leave to enter the United Kingdom.
(2) This article applies to a person who seeks leave to enter the United Kingdom and who—
(a) has made a claim for asylum; or
(b) has made a claim that it would be contrary to the United Kingdom’s obligations under the Human Rights Convention for him to be removed from, or required to leave, the United Kingdom.
(3) This article also applies to a person who seeks leave to enter the United Kingdom for a purpose not covered by the immigration rules or otherwise on the grounds that those rules should be departed from in his case.
(4) In deciding whether to give or refuse leave under this article the Secretary of State may take into account any additional grounds which a person has for seeking leave to enter the United Kingdom.
(5) The power to give or refuse leave to enter the United Kingdom under this article shall be exercised by notice in writing to the person affected or in such manner as is permitted by the Immigration (Leave to Enter and Remain) Order 2000 .