18. (1) A member of the Authority who has a direct or indirect pecuniary interest in a matter being considered or about to be considered by the Authority shall, as soon as possible after the relevant facts have come to the member's knowledge, disclose the nature of the interest at a meeting of the Authority.
(2) A disclosure shall be recorded in the minutes of the meeting and, unless the Authority otherwise determines, the member shall not—
(a) be present during any deliberation of the Authority with respect to that matter; or
(b) take part in any decision of the Authority with respect to that matter.
(3) A member referred to in subsection (2) shall not—
(a) be present during any deliberation of the Authority for the purpose of considering whether to make a determination under that subsection in relation to that member; or
(b) take part in the making by the Authority of such a determination.