such sums as are required (after allowing for payments by the Board into its legal aid fund under paragraphs (a), (b), (c), (d) and (f) of section 6(3)) to meet the payments which, under subsection (2) of that section, are to be paid by the Board out of that fund; and

such sums as he may, with the approval of the Treasury, determine are required for the other expenditure of the Board.

determine the manner in which and times at which the sums referred to in subsection (1)(a) above shall be paid to the Board; and

impose conditions on the payment of the sums referred to in subsection (1)(b) above.