The binding legal principles established are: (1) Applications for remittal to lead new evidence must satisfy the three-part test in S v De Jager: reasonably sufficient explanation for non-production at trial, prima facie likelihood of truth, and material relevance to outcome; (2) The power to hear new evidence on appeal or remit matters will be sparingly exercised only in exceptional circumstances, given the fundamental principle that once issues have been judicially determined, finality is important; (3) Where there is a clear factual dispute in affidavits supporting and opposing remittal, a court should be cautious about resolving credibility without the benefit of oral testimony and cross-examination; (4) Where the credibility of a single witness (particularly a complainant in a sexual offense case) is central to a conviction, evidence that materially undermines that credibility may warrant remittal; (5) Evidence of a complainant's conduct in subsequent unrelated cases may be considered in exceptional circumstances where it demonstrates a proclivity to make false allegations of a distinctive and similar kind, and there is real anxiety about potential miscarriage of justice - analogous to the narrow admissibility of similar fact evidence against an accused; (6) Even where strict compliance with the De Jager requirements is uncertain, a court retains overall discretion to grant remittal in very special circumstances to prevent potential miscarriage of justice.