(1) If the Commission reviews a decision under this Division, the Commission must affirm the decision or set it aside.
(2) If the Commission sets the decision aside it must, subject to subsection (3), substitute a new decision in accordance with this Act.
(3) If the decision set aside is:
(a) a decision to cancel, suspend or reduce the rate of a service pension, income support supplement or a veteran payment under section 56D or 56E; or
(b) a decision to increase the rate of a service pension, income support supplement or a veteran payment under section 56C;
the Commission need not substitute another decision.
Note: For the Commission's evidence - gathering powers see section 57F.