13.—(1) The Panel may—
(a)establish such sub-committees as it may from time to time consider necessary or desirable;
(b)refer to any sub-committee such matter as it may from time to time specify; and
(c)request advice from any such sub-committee in order to assist the Panel in the exercise of its functions.
(2) The Panel may appoint persons who are not members of the Panel to be members of any sub-committee, provided that no such sub-committee may consist entirely of persons who are not members of the Panel.
(3) The Panel must pay to a person appointed in accordance with paragraph (3) such allowances and expenses as the Panel may, with the approval of the Welsh Ministers, determine.