Di dalam hujahannya, pihak Pendakwaan telah merujuk kes PP v Teh Cheng Poh [1980] 1 MLJ 251, di mana Gunn Chit Tuan (selepas itu Hakim Besar Malaya) telah memutuskan seperti berikut: “...Be that as it may, although I would agree that the evidence of any witness should of course be scrutinised with care, I would not, with respect, subscribe to any proposition that the evidence of a police witness must invariably be corroborated in the circumstances described in the above-mentioned passage. I would however, with respect, refer to and adopt the following dictum of Thomson CJ (as he then was) in the case of Public Prosecutor v. Mohamed Ali [1962] MLJ 257 ,258 when his Lordship said as follows: When a Police witness says something that is not inherently improbable his evidence must in the first instance be accepted. If he says he saw a cow jumping over the moon his evidence is, of course, not to be accepted, but if he says he saw a cow wandering along one of the main streets of Kuala Lumpur (the sort of things we all see every day of our lives) there is not the slightest justification for refusing to believe him. Of course if his evidence is contradicted by other evidence or is shaken by cross-examination then it becomes the business of the Magistrate to decide whether or not it should be accepted. In the absence of contradiction, however, and in the absence of any element of inherent improbability the evidence of any witness, whether a Police witness or not, who gives evidence on affirmation, should normally be accepted. Here I would reiterate that I had, of course without undue emphasis on demeanour alone, after seeing and hearing PW2 in the witness box, found him to be a witness of truth and had accepted his testimony as reliable. I also considered that he was not an interested witness but was only a public officer who was only performing his duties and merely related to the Court what he actually saw and did on that day. His evidence was not contradicted by other evidence nor was he shaken in cross-examination and I also found that there was nothing inherently improbable about his evidence which was given on oath. Even if PW2 was an interested witness there is no legal presumption that he should not be believed unless there are cogent reasons for disbelief in the light of evidence to the contrary and the surrounding circumstances (Balasingam v. Public Prosecutor [1959] MLJ 193).”