(1)Section 63 does not entitle a person to appeal against a decision to make a deportation order against him if the ground of the decision was that his deportation is conducive to the public good as being in the interests of national security or of the relations between the United Kingdom and any other country or for other reasons of a political nature.
(2)Section 63 does not entitle a person to appeal against a refusal to revoke a deportation order, if—
(a)the Secretary of State has certified that the appellant’s exclusion from the United Kingdom would be conducive to the public good; or
(b)revocation was refused on that ground by the Secretary of State (and not by a person acting under his authority).
(3)Section 63 does not entitle a person to appeal against a refusal to revoke a deportation order while he is in the United Kingdom, whether because he has not complied with the requirement to leave or because he has contravened the prohibition on entering.
(4)Subsection (5) applies to—
(a)an appeal against a decision to make a deportation order against a person as belonging to the family of another person; or
(b)an appeal against a refusal to revoke a deportation order so made.
(5)The appellant is not to be allowed, for the purpose of showing that he does not or did not belong to another person’s family, to dispute any statement made with a view to obtaining leave for the appellant to enter or remain in the United Kingdom (including any statement made to obtain an entry clearance).
(6)But subsection (5) does not apply if the appellant shows—
(a)that the statement was not so made by him or by any person acting with his authority; and
(b)that, when he took the benefit of the leave, he did not know any such statement had been made to obtain it or, if he did know, he was under the age of eighteen.