A document purporting to be a certificate under section 23(2) or 24(3) shall be received in evidence and deemed to be such a certificate unless the contrary is proved.

A document which purports to be certified by or on behalf of a Minister of the Crown as a true copy of a certificate issued by that Minister under section 23(2) or 24(3) shall in any legal proceedings be evidence (or, in Scotland, sufficient evidence) of that certificate.

The power conferred by section 23(2) or 24(3) on a Minister of the Crown shall not be exercisable except by a Minister who is a member of the Cabinet or by the Attorney General, the Advocate General for Scotland or the Attorney General for Northern Ireland.