567. Special powers of the Court Martial Appeal Court in relation to evidence.

For the purposes of an appeal or an application for leave to appeal, the Court Martial Appeal Court1 may: (1) order the production of any document, exhibit or other thing connected with the proceedings the production of which appears to it necessary for the determination of the case2; (2) order any witness to attend for examination and be examined before the Appeal Court (whether or not he was called in the proceedings from which the appeal lies)3; and (3) receive any evidence which was not adduced in the proceedings from which the appeal lies4. The court must, in considering