xmlns:atom="http://www.w3.org/2005/Atom"
7A document bearing a certificate which—
(a)is signed by a person authorised in that behalf by the Secretary of State; and
(b)states that the document, apart from the certificate, is a record of a decision of a Commissioner,
shall be conclusive evidence of the decision; and a certificate purporting to be so signed shall be deemed to be so signed unless the contrary is proved.