25.—(1) A person shall not be returned under this Act from a listed territory to which the Convention referred to in subsection (3) below has been extended, to Ireland or to a designated Commonwealth country which is party to that Convention, or to a British overseas territory to which that Convention has been extended, or committed or kept in custody for the purposes of such return, if it appears to the appropriate authority—
(a)that he might, if returned, be prejudiced at his trial by reason of the impossibility of effecting communications between him and the appropriate authorities of the state entitled to exercise rights of protection in relation to him; and
(b)that the act or omission constituting the offence of which he has been accused or convicted also constituted an offence under section 1 of the Taking of Hostages Act 1982(1) as extended to that territory, or a corresponding law of that territory, or an attempt to commit such an offence.
(2) Where the Governor of the relevant listed territory certifies that a country is a party to the Convention or that a British overseas territory is a British overseas territory to which the Convention has been extended, the certificate shall, in any proceedings under this Act, be conclusive evidence of that fact.
(3) The Convention mentioned in subsections (1) and (2) above is the International Convention against the Taking of Hostages opened for signature at New York on 18 December 1979.