Untuk menyokong hujahan ini, pihak Pendakwaan bergantung kepada otoriti PP v Chia Leong Foo [2000] 6 MLJ 705 di mana Hakim Augustine Paul (pada ketika itu) telah memutuskan seperti berikut: "As I said in PP v. Hoo Chee Keong [1997] 4 MLJ 451 at p. 459: Proof of knowledge is very often a matter of inference." "Thean J (as he then was) in elaborating on the manner of inferring knowledge said in PP v Phua Keng Tong [1986] 2 MLJ 279 at p 286: However, in this case, like in many others, proof of knowledge or belief on the part of an accused is a matter of inference from facts. In the case of RCA Corp v Custom Cleared Sales Pty Ltd [1978] FSR 576; 19 ALR 123, the Court of Appeal in New South Wales in dealing with the question of knowledge of infringement of copyright said at p 478: 'Except where a party's own statements or gestures are relied upon, proof of knowledge is always a matter of inference, and the material from which the inference of the existence of actual knowledge can be inferred varies infinitely from case to case.' And the court further said, at p 579: 'It seems to us that the principle is more accurately put by saying that a court is entitled to infer knowledge on the part of a particular person on the assumption that such a person has the ordinary understanding expected of persons in his line of business, unless by his or other evidence it is convinced otherwise. In other words, the true position is that the court is not concerned with the knowledge of a reasonable man but is concerned with reasonable inferences to be drawn from a concrete situation as disclosed in the evidence as it affects the particular person whose knowledge is in issue. In inferring knowledge, a court is entitled to approach the matter in two stages; where opportunities for knowledge on the part of the particular person are proved and there is nothing to indicate that there are obstacles to the particular person acquiring the relevant knowledge, there is some evidence from which the court can conclude that such person has knowledge." (penekanan ditegaskan)