Additional powers of Court in hearing appeals in civil matters

On the hearing of an appeal from any order of the Supreme Court or of a judge thereof in any civil cause or matter, the Court may, if it thinks fit, (a) order the production of any document, exhibit or other thing connected with the proceedings, the production of which appears to be necessary for the determination of the case, provided that no person shall be compelled to produce under any such order any writing or other document which he could not have been compelled to produce at the hearing or trial; 17 (b) order any witness who would have been a compellable witness at the trial to attend and be examined before the Court whether or not he was called at the trial, or order the examination of any such witness to be conducted in manner provided by rules of court before any judge of the Supreme Court or before any officer of the Supreme Court or other suitably qualified person appointed by the Court for the purpose, and at any place and allow the admission of any deposition so taken as evidence before the Court; (c) receive the evidence, if tendered, of any witness (including any party) who is a competent but not compellable witness and, if a party makes application for the purpose, of the husband or wife of that party in cases where the evidence of the husband or wife could not have been given at the trial except on such application; (d) where the case was not tried by the Supreme Court, remit the case to the court of trial for further hearing, with such instructions as regards the taking of further evidence or other- wise as appear to it necessary; and in all cases, remit the case with such instructions of the (e) where any question arising at the appeal involves prolonged examination of documents or accounts or any scientific or local investigation which cannot, in the opinion of the Court, conveniently be conducted before the Court, order the reference of the question in manner provided by rules of court for inquiry and report to a special commissioner appointed by the Court and act upon the report 18 of any such commissioner so far as it thinks fit to adopt it; (f) appoint any person with special expert knowledge to act as an assessor in an advisory capacity in any case where it appears to the Court that such knowledge is required for the proper determination of the case.