s 22 Proof of documents and evidence.
(1) In any proceedings under this Part of this Act a decision of an authority outside the United Kingdom may be proved by a duly authenticated copy of the decision; and any document purporting to be such a copy shall be deemed to be a true copy unless the contrary is shown. (2) For the purposes of subsection (1) above a copy is duly authenticated if it bears the seal, or is signed by a judge or officer, of the authority in question. (3) In any proceedings under this Part of this Act any such document as is mentioned in Article 13 of the Convention, or a certified copy of any such document, shall be sufficient evidence of anything stated in it.