4.       Public Service Structure

          (1) The public service of Botswana shall consist of such ministries, departments and public offices as the President may constitute in terms of section 56 of the Constitution as read with sections 50 (4) and 52 thereof.

          (2) Every-

    (a)     Ministry shall be under the control and direction of the Minister to whom the President has assigned it in terms of section 50 (4) of the Constitution;

    (b)     Ministry shall be under the administrative supervision of a Permanent Secretary; and

    (c)     Department shall, save where otherwise specified, be under the administrative supervision of a Head of Department.