20(1)The Secretary of State (instead of DBS) may—
(a)appoint the first chief executive, and
(b)decide the terms and conditions of service as an employee of DBS which are applicable to the first chief executive on appointment.
(2)The period of any such appointment must not exceed 5 years (but the person may be re-appointed under paragraph 4).
(3)The person who has the function of chairing DBS may be appointed as chief executive by the Secretary of State under this paragraph.