“52.10(1) In relation to an appeal the appeal court has all the powers of the lower court ... 52.11(1) Every appeal will be limited to a review of the decision of the lower court unless ... (2) Unless it orders otherwise, the appeal court will not receive (a) oral evidence; or (b) evidence which was not before the lower court. (3) The appeal court will allow an appeal where the decision of the lower court was (a) wrong; or (b) ... (4) The appeal court may draw any inference of fact which it considers justified on the evidence.”
“... in cases where there is no question of the credibility or reliability of any witness, and in cases where the point in dispute is the proper inference to be drawn from proved facts, an appeal court is generally in as good a position to evaluate the evidence as the trial judge, and ought not to shrink from that task, though it ought, of course, to give weight to his opinion.”
“With regard to an appeal to this court (which would never have involved a complete rehearing in that sense), the language of ‘review’ may be said to fit most easily into the context of an appeal against the exercise of a discretion, or an appeal where the court of appeal is essentially concerned with the correctness of an exercise of evaluation or judgment – such as a decision by a lower court whether, weighing all relevant factors, a contract of service existed. However, the references in rule 52.11 (3) and (4) to the power of an appellate court to allow an appeal where the decision below was ‘wrong’ and to ‘draw any inference of fact which it considers justified on the evidence’ indicate that there are other contexts in which the court of appeal must, as previously, make up its own mind as to the correctness or otherwise of a decision, even on matters of fact, by a lower court. Where the correctness of a finding of primary fact or of inference is in issue, it cannot be a matter of simple discretion how an appellate court approaches the matter. Once the appellant has shown a real prospect (justifying permission to appeal) that a finding or inference is wrong, the role of an appellate court is to determine whether or not this is so, giving full weight of course to the advantages enjoyed by any judge of first instance who has heard oral evidence. In the present case, therefore, I consider that (a) it is for us if necessary to make up our own mind about the correctness or otherwise of any findings of primary fact or inferences from primary fact that the judge made or drew and the claimants challenge, while (b) reminding ourselves that, so far as the appeal raises issues of judgment on unchallenged primary findings and inferences, this court ought not to interfere unless it is satisfied that the judge’s conclusion lay outside the bounds within which reasonable disagreement is possible. In relation to (a) we must, as stated, bear in mind the important and well-recognised reluctance of this court to interfere with a trial judge on any finding of primary fact based on the credibility or reliability of oral evidence. In the present case, however, while there was oral evidence, its content was largely uncontentious.”
“The need for appellate caution in reversing the judge’s evaluation of the facts is based upon much more solid grounds than professional courtesy. It is because specific findings of fact, even by the most meticulous judge, are inherently an incomplete statement of the impression which was made upon him by the primary evidence. His expressed findings are always surrounded by a penumbra of imprecision as to emphasis, relative weight, minor qualification and nuance (as Renan said, la vérité est dans une nuance), of which time and language do not permit exact expression, but which may play an important part in the judge's overall evaluation. It would in my view be wrong to treat Benmax as authorising or requiring an appellate court to undertake a de novo evaluation of the facts in all cases in which no question of the credibility of witnesses is involved. Where the application of a legal standard such as negligence or obviousness involves no question of principle but is simply a matter of degree, an appellate court should be very cautious in differing from the judge’s evaluation.”
“Taking the evidence as a whole ...”