"[15] The meaning of the phrase 'consciousness of guilt', the risk that its use by the trial judge may itself suggest guilt, which circumstances call for the giving of an Edwards_-_type direction, and the difficulty in distinguishing between lies going to credibility and those indicating guilt have been matters of some controversy. The Court of Appeal in Victoria in a series of cases, R v Morgan, R v Renzella, R v Laz, R v Erdei, R v Cervelli and R v Konstandopoulos has sought to grapple with the problem. But as Hayne JA in Morgan suggests, rigid prescriptive rules as to when and in what precise terms an Edwards - type direction should be given cannot be comprehensively stated.
[16] There may be cases in which the risk of misunderstanding on the part of a jury as to the use to which they may put lies might be such that a judge should give an Edwards - type direction notwithstanding that the prosecutor has not put that a lie has been told out of consciousness of guilt. As a general rule, however, an Edwards - type direction should only be given if the prosecution contend that a lie is evidence of guilt, in the sense that it was told because, in the language of Deane, Dawson and Gaudron JJ in Edwards, 'the accused knew that the truth...would implicate him in [the commission of] the offence' and if, in fact, the lie in question is capable of bearing that character (The words in italics are ours and, for the sake of clarity, should be included in the statement of principle_)_.
[17] Moreover, if there is a risk of confusion or doubt as to the way in which the prosecution puts its case, the trial judge should inquire of the prosecution whether it contends that lies may constitute evidence of consciousness of guilt and, if so, he or she should require identification of the lie or lies at issue and the basis on which they are said to be capable of implicating the accused in the commission of the offence charged." (footnotes omitted)