(1) The Minister may delegate a function or power conferred on the Minister under this Act—
(a) to a particular person or body; or
(b) to the person for the time being occupying a particular office or position.
(2) A function or power delegated under this section may, if the instrument of delegation so provides, be further delegated.
(3) A delegation—
(a) may be made subject to conditions or limitations specified in the instrument of delegation; and
(b) does not derogate from the power of the Minister to act in a matter; and
(c) is revocable at will by the Minister.
(4) In any legal proceedings an apparently genuine certificate, purportedly given by the Minister, containing particulars of a delegation under this will, in the absence of proof to the contrary, be accepted as proof that the delegation was made in accordance with the particulars.