2(1)Subject to the provisions of this Schedule, a Commissioner shall hold office in accordance with the terms of his appointment.
(2)A Commissioner shall not be appointed—
(a)in the case of the Chief Commissioner, for more than five years at a time; and
(b)in any other case, for more than three years at a time.
(3)A person may resign as a Commissioner, as the Chief Commissioner or as a Deputy Chief Commissioner by notice in writing to the Secretary of State.
(4)The Secretary of State may dismiss a person from his office of Commissioner, Chief Commissioner or Deputy Chief Commissioner if satisfied—
(a)that he has without reasonable excuse failed to discharge his functions for a continuous period of three months beginning not earlier than six months before the day of dismissal;
(b)that he has been convicted of a criminal offence;
(c)that a bankruptcy order has been made against him, or his estate has been sequestrated, or he has made a composition or arrangement with, or granted a trust deed for, his creditors; or
(d)that he is unable or unfit to carry out his functions.