"[23] ... on the one hand, the appellate court is obliged to "give the judgment which in its opinion ought to have been given in the first instance". On the other, it must, of necessity, observe the "natural limitations" that exist in the case of any appellate court proceeding wholly or substantially on the record. These limitations include the disadvantage that the appellate court has when compared with the trial judge in respect of the evaluation of witnesses' credibility and of the "feeling" of a case which an appellate court, reading the transcript, cannot always fully share ...
[24] Nevertheless, mistakes, including serious mistakes, can occur at trial in the comprehension, recollection and evaluation of evidence. ...
[25] Within the constraints marked out by the nature of the appellate process, the appellate court is obliged to conduct a real review of the trial and, in cases where the trial was conducted before a judge sitting alone, of that judge's reasons. Appellate courts are not excused from the task of 'weighing conflicting evidence and drawing [their] own inferences and conclusions, though [they] should always bear in mind that [they have] neither seen nor heard the witnesses, and should make due allowance in this respect' ...
[26] After Warren v Coombes, a series of cases was decided in which this Court reiterated its earlier statements concerning the need for appellate respect for the advantages of trial judges, and especially where their decisions might be affected by their impression about the credibility of witnesses whom the trial judge sees but the appellate court does not ...
[27] ... The cases mentioned remain the instruction of this Court to appellate decision-making throughout Australia. However, that instruction did not, and could not, derogate from the obligation of courts of appeal, in accordance with legislation such as the Supreme Court Act applicable in this case, to perform the appellate function as established by Parliament. Such courts must conduct the appeal by way of rehearing. If, making proper allowance for the advantages of the trial judge, they conclude that an error has been shown, they are authorised, and obliged, to discharge their appellate duties in accordance with the statute.
[28] ... However, the mere fact that a trial judge necessarily reached a conclusion favouring the witnesses of one party over those of another does not, and cannot, prevent the performance by a court of appeal of the functions imposed on it by statute. In particular cases incontrovertible facts or uncontested testimony will demonstrate that the trial judge's conclusions are erroneous, even when they appear to be, or are stated to be, based on credibility findings.
[29] That this is so is demonstrated in several recent decisions of this Court. In some, quite rare, cases, although the facts fall short of being "incontrovertible", an appellate conclusion may be reached that the decision at trial is "glaringly improbable" or "contrary to compelling inferences" in the case. In such circumstances, the appellate court is not relieved of its statutory functions by the fact that the trial judge has, expressly or implicitly, reached a conclusion influenced by an opinion concerning the credibility of witnesses. In such a case, making all due allowances for the advantages available to the trial judge, the appellate court must 'not shrink from giving effect to' its own conclusion. ...
[30] It is true, as McHugh J has pointed out, that for a very long time judges in appellate courts have given as a reason for appellate deference to the decision of a trial judge, the assessment of the appearance of witnesses as they give their testimony that is possible at trial and normally impossible in an appellate court. However, it is equally true that, for almost as long, other judges have cautioned against the dangers of too readily drawing conclusions about truthfulness and reliability solely or mainly from the appearance of witnesses. Thus, in 1924 Atkin LJ observed in Société d'Avances Commerciales (Société Anonyme Egyptienne) v Merchants' Marine Insurance Co (The "Palitana"):