11.—(1) If a trustee has a personal, financial or other significant involvement in a matter on which a debate or vote is to take place, then at the start of any proceedings on such a matter the trustee shall declare the interest and offer to withdraw from the debate or vote.
(2) The convenor, in consultation with the other trustees, may decide that the trustee offering to withdraw should do so, in which case that trustee shall withdraw from the remainder of the proceedings on that item, or the convenor may decide that the trustee be invited to remain and contribute on a factual basis only, in which case that trustee may do so, but shall withdraw while any vote is taken on that item.