If a credible explanation is forthcoming for a failure to give evidence the effect of silence may be diminished.
Lord Lowry at p 300 said:
“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.”
This case was reviewed in Wisniewski.