23.—(1) Any document purporting to be a document duly executed or issued by or on behalf of the Panel shall, unless the contrary is proved, be deemed to be a document so executed or issued as the case may be.
(2) A document purporting to be certified by the Panel to be a true copy of any entry of a decision in the register shall, unless the contrary is proved, be sufficient evidence of the entry and of the matters contained in it.