“… There must be a reasonable basis for some hypothesis in the evidence or the inherent probabilities, before a court can draw useful inferences from a party’s failure to rebut it. For my part I would adopt, with a modification which I shall come to, the more balanced [than that of Lord Diplock in Herrington v BRB ] view expressed by Lord Lowry with the support of the rest of the committee in R v Inland Revenue Comrs, Ex p TC Coombs & Co[1991] 2 AC 283 , 300: ‘In our legal system generally, the silence of one party in face of the other party’s evidence may convert that evidence into proof in relation to matters which are, or are likely to be, within the knowledge of the silent party and about which that party could be expected to give evidence. Thus, depending on the circumstances, a prima facie case may become a strong or even an overwhelming case. But, if the silent party’s failure to give evidence (or to give the necessary evidence) can be credibly explained, even if not entirely justified, the effect of his silence in favour of the other party, may be either reduced or nullified.”