Section 57: Tenure of office of members.

(1) A person who is a member of any of the bodies established by section 55 (1) of this Act shall, subject to the provisions of this Part, remain a member thereof-
(a) in the case of an ex-officio member, whilst he holds the office by virtue of which he is a member of the body ;
(b) in the case of a person who is a member otherwise than as an ex-officio member or otherwise than by virtue of his having previously held an office, for a period of 5 years from the date of his appointment.
(2) A member of any of the bodies shall cease to be a member if any circumstances arise that, if he were not a member of the body, would cause him to be disqualified for appointment as such a member.