Sch 19 para 2
(1) The Board is to consist of a chairman and not less than five other members appointed by the Secretary of State. (2) The Board must include among its members— (a) a person who holds or has held judicial office; (b) a registered medical practitioner who is a psychiatrist; (c) a person appearing to the Secretary of State to have knowledge and experience of the supervision or after-care of discharged prisoners; ... (d) a person appearing to the Secretary of State to have made a study of the causes of delinquency or the treatment of offenders ; and (e) a person appearing to the Secretary of State to have experience of law enforcement in a part of the United Kingdom. (2A) “ Law enforcement ” means the prevention, detection or investigation of offences. (3) A member of the Board— (a) holds and vacates office in accordance with the terms of his appointment; (b) may resign his office by notice in writing addressed to the Secretary of State; and a person who ceases to hold office as a member of the Board is eligible for re-appointment.