56 A distinction was drawn between suspicion and belief (at 115 - 116):
Suspicion, as Lord Devlin said in Hussien v Chong Fook Kam [1970] AC 942, at 948, "in its ordinary meaning is a state of conjecture or surmise where proof is lacking: 'I suspect but I cannot prove.'" The facts which can reasonably ground a suspicion may be quite insufficient reasonably to ground a belief, yet some factual basis for the suspicion must be shown. In Queensland Bacon Pty Ltd v Rees (1966) 115 CLR 266, a question was raised as to whether a payee had reason to suspect that the payer, a debtor, "was unable to pay [its] debts as they became due" as that phrase was used in s95(4) of the Bankruptcy Act 1924 (Cth). Kitto J said (at 303):
"A suspicion that something exists is more than a mere idle wondering whether it exists or not; it is a positive feeling of actual apprehension or mistrust, amounting to 'a slight opinion, but without sufficient evidence', as Chambers's Dictionary expresses it. Consequently, a reason to suspect that a fact exists is more than a reason to consider or look into the possibility of its existence. The notion which 'reason to suspect' expresses in subs(4) is, I think, of something which in all the circumstances would create in the mind of a reasonable person in the position of the payee an actual apprehension or fear that the situation of the payer is in actual fact that which the subsection describes - a mistrust of the payer's ability to pay his debts as they become due and of the effect which acceptance of the payment would have as between the payee and the other creditors."
The objective circumstances sufficient to show a reason to believe something need to point more clearly to the subject matter of the belief, but that is not to say that the objective circumstances must establish on the balance of probabilities that the subject matter in fact occurred or exists: the assent of belief is given on more slender evidence than proof. Belief is an inclination of the mind towards assenting to, rather than rejecting, a proposition and the grounds which can reasonably induce that inclination of the mind may, depending on the circumstances, leave something to surmise or conjecture.