Supreme Court Act 1933

If the Court of Appeal orders a new trial, the court may, by the order, do any or all of the following in relation to the new trial:

order that the new trial be conducted generally, or on particular issues;

impose any conditions that it considers appropriate;

direct any admissions by a party that it considers appropriate;

order that the testimony of a witness examined at the original trial be used in the new trial in the way stated in the order.