In Mersey Docks & Harbour Board v Proctor [3] , Viscount Cave referred again to the subject and said that it was the duty of a court of appeal to make up its own mind, not disregarding the judgment appealed from and giving special weight to that judgment in cases where the credibility of witnesses comes in question but with full liberty to draw its own inferences from the facts proved or admitted. The distinction between inferences from fixed facts and findings based on testimony frequently recurs. In Cooper v General Accident, Fire & Life Assurance Corporation Ltd. [4] , Lord Cave said: "The question is, not what are the facts, but what is the proper inference to be drawn from the facts proved, and upon that point, as has been often said, the appellate tribunal is not less competent to judge than the judge who actually hears the case." In S.S. Hontestroom v S.S. Sagaporack [5] , Lord Sumner gave an important summary of the competing considerations. His Lordship said: "Of course, there is jurisdiction to retry the case on the shorthand note None the less, not to have seen the witnesses puts appellate judges in a permanent position of disadvantage as against the trial judge, and, unless it can be shown that he has failed to use or has palpably misused his advantage, the higher Court ought not to take the responsibility of reversing conclusions so arrived at, merely on the result of their own comparisons and criticisms of the witnesses and of their own view of the probabilities of the case. The course of the trial and the whole substance of the judgment must be looked at, and the matter does not depend on the question whether a witness has been cross-examined to credit or has been pronounced by the judge in terms to be unworthy of it. If his estimate of the man forms any substantial part of his reasons for judgment the trial judge's conclusions of fact should, as I understand the decisions, be let alone."
Their Honours then referred to Federal Commissioner of Taxation v Clarke and said that in that case: "These cautions did not prevent this Court reversing Mann J. on a pure question of fact depending on testimony."
1. e.g., Federal Commissioner of Taxation v Clarke (1927), 40 C.L.R. 246; Paterson v Paterson (1953), 89 C.L.R. 212.
2. ibid., at p. 222.
3. [1923] A.C. 253, at pp. 258-259.
4. (1923) 128 L.T. 481, at p. 483.
5. [1927] A.C. 37, at p. 47.