the respondent, claiming a declaration that the land belonged to the
estate of Rebecca Shade, and consequential relief, on the ground that the testatrix had purchased the land for £260 and that it was transferred to the respondent to hold in trust for Rebecca Shade. The respondent in her defence denied that the testatrix had purchased the land, and said that, if she did, it was purchased for the respondent in return for services or by way of gift, and she also set up estoppel, on the ground of expenditure acquiesced in. The trial took place before Northmore J., who gave judgment for the appellants. An appeal to the Full Court before McMillan C.J. and Burnside J. was allowed. The questions as to services and estoppel disappeared. From the judgment of the Full Court the present appeal is brought.
One contention of the appellants, pressed in the Full Court and here, affects the whole position, and must be dealt with first. It is, that as Northmore J. heard the witnesses, and on the whole thought the statements made by the defendant and on her behalf not credible, the Court of appeal should not reverse his decision.
Credibility of testimony is, of course, not confined to the honesty of the person who gives it; it involves everything personal to the witness. Without attempting to exhaust the personal elements of credibility, it includes, besides honesty and demeanour, such qual- ities as power of recollection, decision, judgment and experience. But it also includes the analysis of the testimony of the witness himself, and, on occasions, its consistency with undoubted facts or unquestioned circumstances. Consequently it is impossible to lay down an iron rule that whether the testimony of a witness is credible or incredible is always a matter for the primary tribunal alone, and sacrosanct territory on appeal.
In Dearman v. Dearman 1 the duty of an appellate Court was summed up as gathered from decisions of authority. Material available to the primary Judge, and unavailable to the appellate Court, may be either essential, or non-essential, to the ultimate decision. It may, if non-essential, be nevertheless SO important that without it no conclusion adverse to the primary decision can safely be arrived at; or it may, in the opinion of the ultimate tribunal, be clearly outweighed by the other circumstances of the
17 C.L.R., at p. 561.