Instruments
18.—(1) The fixing of the seal of the Commission shall be authenticated by a member of the Commission or by some other person authorised either generally or specially by the Commission to act for that purpose.
(2) A document purporting to be duly executed under the seal of the Commission or to be signed on the Commission’s behalf—
(a)shall be received in evidence, and
(b)unless the contrary is proved, shall be deemed to be so executed or signed.