12(1)The Authority—
(a)may establish a committee for any purpose; and
(b)if so directed by the Secretary of State, shall establish a committee for such purpose as is specified in the direction.
(2)The Authority shall determine the number of members which a committee established under this paragraph shall have, and the terms on which they are to hold and vacate office.
(3)Subject to such conditions as the Secretary of State may determine, a committee may include persons who are not members of the Authority.
(4)The Authority shall keep under review the structure of committees established under this paragraph and the scope of each committee’s activities.