21(1)Without prejudice to any other power conferred on the Minister by this Act, the Minister may give the Board instructions with respect to any matter connected with any of their functions.
(2)An instruction under this paragraph relating to any financial matter shall be given only with the approval of the Treasury and after consultation with the Board ; and any other instruction under this paragraph shall be given only after consultation with the Board.
(3)An instruction under this paragraph may be general or specific in character, but shall not confer on the Board power to do anything which they would not have power to do apart from the instruction.