(i) he shall cease to hold office if he ceases to he a Minister,
(ii) he may at any time by notice in writing addressed to the Officer Administering the Government and delivered to the Prime Minister resign his office.
(3) Any person appointed under this section shall, before entering upon his office, take before the Officer Administering the Governinent or sone person authorized by the Officer Administering the Government in that behalf, the oath of a member of the Executive Council in the form set out in the First Schedule.
Exercise of the functions of the Officer Administering the government
50.(1) In the exercise of his functions, the Officer Administering the Government shall act in accordance with the advice of the Executive Council or the appropriate Minister of the Prime Minister on behalf of the Ministers of the Government of Rhodesia, as the case may require, except where under this Constitution or any other law he is required to act in accordance with the advice of any other person or authority:
Provided that the Oficer Administering the Government shall act in accordance with his own discretion in the appointment of a Prime Minister in pursuance of subsection (1) of section 48. but in such case the Officer Administering the Government shall observe the constitutional conventions which apply to the exercise of similar powers by Her Majesty in the United Kingdom
(2) Where the Officer Administering the Government is required to act in accordance with his own discretion or the advice of any specified person or authority, a court shall not in any case, inquire into any of the following questions or matters--
(a) on whose advice the Officer Administering the Government acted;
(b) whether any advice was tendered or acted on,
(c) the nature of any advice tendered.
(d) the corresponding constitutional conventions referred to in subsection (1) of this section or whether they were observed.
(3) The provisions of this Constitution or any other law referring to the Officer Administering the Government shall be constructed as referring to the Othcer Administering the Government acting on the advice of the Ministers or Deputy Ministers of the Government of Rhodesia or the Executive Council, as the case may be, and where he acts on the advice of any other person or body by or under this Constitution or any other law that fact may be
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