Furthermore, the Federal Court case of Ng Hoo Kui & Anor v Wendy Tan Lee Peng (administratrix for the estate of Tan Ewe Kwang, deceased) & Ors [2020] 12 MLJ 67 had clearly demonstrated under what circumstances an appellate court ought to warrant an intervention: - “THE LAW IN APPELLATE INTERVENTION [33] ‘It was a long settled principle, stated and restated in domestic and wider common law jurisprudence, that an appellate court should not interfere with the trial judge’s conclusions on primary facts unless satisfied that he was plainly wrong’ (the Supreme Court of United Kingdom in McGraddie v McGraddie and another [2013] 1 WLR 2477). [34] The ‘plainly wrong’ test operates on the principle that the trial court has had the advantage of seeing and hearing the witnesses on their evidence as opposed to the appellate court that acts on the printed records. The test was pioneered by the House of Lords in Clarke v Edinburgh and District Tramways Co 1919 SC (HL) 35, when it adjudicated on the ability of an appellate court to reconsider the facts of a particular case, when there is already findings of fact by the lower court. In this regard, Lord Shaw’s judgment is pertinent when His Lordship said: ‘When a judge hears and sees witnesses and makes a conclusion or inference with regard to what is the weight on balance of their evidence, that judgment is entitled to great respect, and that quite irrespective of whether the Judge makes any observation with regard to credibility or not. I can of course quite understand a Court of Appeal that says that it will not interfere in a case in which the Judge has announced as part of his judgment that he believes one set of witnesses, having seen them and heard them, and does not believe another. But that is not the ordinary case of a cause in a Court of justice. In Courts of justice in the ordinary case things are much more evenly divided; witnesses without any conscious bias towards a conclusion may have in their demeanour, in their manner, in their hesitation, in the nuance of their expressions, in even the turns of the eyelid, left an impression upon the man who saw and heard them which can never be reproduced in the printed page. What in such circumstances, thus psychologically put, is the duty of an appellate Court? In my opinion, the duty of an appellate Court in those circumstances is for each Judge of it to put to himself, as I now do in this case, the question, Am I-who sit here without those advantages, sometimes broad and sometimes subtle, which are the privilege of the Judge who heard and tried the case – in a position, not having those privileges, to come to clear conclusion that the Judge who had them was plainly wrong? If I cannot be satisfied in my own mind that the Judge with those privileges was plainly wrong, then it appears to me to be my duty to defer to his judgment. [35] Lord Shaw’s judgment was adopted by Viscount Sankey LC in Powell v Streatham Manor Nursing Home [1935] AC 243 when His Lordship made the following observation at p 250: ‘What then should be the attitude of the Court of Appeal towards the judgment arrived at in the Court below under such circumstances as the present? It is perfectly true that an appeal is by way of rehearing, but it must not be forgotten that the Court of Appeal does not hear the witnesses. It only reads the evidence and rehears the counsel. Neither is it a reseeing Court … On an appeal against a judgment of a judge sitting alone, the Court of Appeal will not set aside the judgment unless the appellant satisfies the Court that the judge was wrong and that his decision ought to have been the other way. Where there has been a conflict of evidence the Court of Appeal will have special regard to the fact that the judge saw the witnesses.’ … [37] In much later years, the House of Lords had the occasion to consider on the same issue in Watt (or Thomas) v Thomas [1947] AC 484, namely, when was it appropriate for an appellate court to set aside the judgment of the court on findings of fact at first instance, and it held that: ‘When a question of fact has been tried by a judge without a jury, and it is not suggested that he has misdirected himself in law, an appellate court in reviewing the record of the evidence should attach the greatest weight to his opinion, because he saw and heard the witness, and should not disturb his judgment unless it is plainly unsound. The appellate court is however free to reverse his conclusion if the grounds given by him therefore are unsatisfactory by reason of the material inconsistencies or inaccuracies or if it appears unmistakably from the evidence in reaching them, he has not taken proper advantage of having seen and heard the witnesses or has failed to appreciate the weight and bearing of circumstances admitted or proved.’ … [60] The aforesaid cases illustrate the highly deferential attitude adopted by appellate courts in the United Kingdom towards reviewing findings of fact by the trial court. The test is not whether the higher court feels that it would have reached a different conclusion on the same facts as the trial court, but whether or not the decision by the lower court on findings of fact was reasonable. In other words, if the trial judge’s decision can be reasonably explained and justified, then appellate courts should refrain from intervention. … [151] It is not sufficient for the Court of Appeal to reverse the findings on fact merely because on a particular point of evidence, it disagreed with the conclusion made by the trial court on whether one party or the other is to be believed on the evidence that they gave in court. Although there may be inconsistencies in the evidence which could mean that another judge would have been persuaded to reach a different conclusion, this is not relevant when considering if a trial judge’s findings of fact could be overturned. The task of the trial judge is hard enough, without having to deal with every single piece of evidence which may emerge in the course of the trial. If such a requirement was to be imposed on a trial judge then their task in hearing a case would be very tedious and the time taken to produce judgments would increase…” [emphasis added]