(1)For the purpose of exercising any powers conferred by this Act on the Privy Council (other than the power of hearing appeals against disciplinary orders or directions under section 19 above) the quorum of the Privy Council shall be two.
(2)Any document purporting to be—
(a)an instrument of appointment or approval made by the Privy Council under this Act or any other instrument so made; and
(b)signed by the Clerk of the Privy Council or by any other person authorised by the Privy Council in that behalf,
shall be evidence of the fact that the instrument was so made and of the terms of the instrument.