4(1)Subject to sub-paragraphs (2) to (5), every member of the Commission shall hold and vacate his office in accordance with the terms of his appointment.
(2)Any member may resign by notice in writing to the Secretary of State.
(3)The chairman or deputy chairman may resign his office as chairman or deputy chairman by notice in writing to the Secretary of State.
(4)The Secretary of State may remove a member from office if that member—
(a)has become bankrupt or made an arrangement with his creditors;
(b)is incapacitated by physical or mental illness;
(c)has been absent from meetings of the Commission for a period of six months otherwise than for a reason approved by the Secretary of State; or
(d)is in the opinion of the Secretary of State otherwise unable or unfit to discharge the functions of a member.
(5)If the chairman or deputy chairman ceases to be a member he shall also cease to be chairman or deputy chairman.