The argument in the District Court proceeded (correctly) on the basis that resolution of the second issue depended essentially upon the admissibility, by reference to ss97, 98 and 101 of the Evidence Act , of the evidence of the allegations concerning any one complainant in the trial of the allegations concerning any other complainant.
36 I should mention here one complicating factor. The transcript of the argument in the District Court strongly suggests that Shillington ADCJ was not expecting to be the trial judge. Questions of the admissibility of evidence are questions committed to the trial judge. Ss97 and 98 explicitly commit to "the court" - meaning the trial judge - the evaluation of the probative value of the evidence tendered. The admissibility of the evidence is determined by the outcome of that evaluative process. S101 requires an evaluation of the probative value of the evidence relative to its prejudicial effect. This, too, is an evaluation to be made by the trial judge. Subs(2) requires that a decision be made about the use to which evidence can be put based upon that evaluation. That strongly implies that the decision contemplated is that of the trial judge. Indeed, in its terms ("tendency ... or coincidence evidence ... that is adduced by the prosecution ..."), s101(2) appears to envisage that the evidence be adduced before the evaluation is made. The prohibition in s101 is on the use that can be made of the evidence, not its admissibility. I will return to the construction of s101(2) (see [43] - [44] below).
37 Shillington ADCJ was, therefore, not called upon, and could not have been called upon, to make a ruling on whether the evidence on which the Crown sought to rely would be admitted; the best he could do was to make his own assessment, on the material then available, of whether the admission of evidence relating to the allegations concerning one complainant in the trial of the allegations concerning any other complainant would render that trial unfair. The exercise involved, not a ruling on admissibility, but hypothesising separate trials and considering the likely effect on the fairness of the trials of the evidence sought to be tendered by the Crown as tendency and/or coincidence evidence.
38 I say that the exercise involves hypothesising separate trials for this reason. In the event of a joint trial of all sets of charges, there could be no question about the admissibility of the evidence supporting each charge. Thus, for example, the evidence relevant to the charges concerning the complainant MD would plainly be admissible in the trial, as would the evidence concerning the complainant HH, and so on.
39 And the evidence could not properly be characterised as either tendency or coincidence evidence. Those terms are defined in the Dictionary as meaning evidence adduced for the purpose of establishing either tendency or coincidence. In a joint trial the evidence concerning MD would not be adduced for the purpose of establishing either tendency or coincidence; it would be adduced for the purpose of establishing the offences alleged to have been committed against her.
40 The question, therefore, was not whether tendency or coincidence evidence would be admissible in a joint trial, but whether it would be admissible in separate trials.
41 If the assessment were that the admission of such evidence would render the trial unfair, the proper exercise of his discretion required an order for separate trials. If the assessment were otherwise, there would no utility in so ordering, and it would have been appropriate to refuse the application.
42 In making that assessment his Honour was called upon, in almost a predictive way, hypothetically to determine (but not rule upon - that remained the province of the trial judge) the admissibility of the evidence. This involved the hypothetical application of ss97, 98 and 101.
43 Although the exercise was never so characterised, and although his Honour does not appear to have turned his attention expressly to s29, this is, in substance, what he did. His Honour did not expressly answer the first question I have posed, arising from s29(1)(c). However, it is implicit in what he did say (extracted above [21]), that he considered that the offences were alleged to have been part of a series of offences of a similar character. Had he turned his attention directly to that question, he undoubtedly would explicitly have so held. Although some submission to the contrary was put to his Honour, no ground of appeal is raised in this Court that challenges the correctness of this application of s29(1)(c). In my opinion, the conclusion is unchallengable.
44 The issues that arise in relation to s29, and those that arise where the Crown proposes to rely upon tendency and/or coincidence evidence, are related, but they are not the same.
45 The s29 question is directed to the nature of the allegations made by the Crown, and is fairly limited in scope. It has nothing to do with the admission of evidence. The principal questions arising under s97 and s98 involve, in each case, an assessment of the probative value of the evidence sought to be adduced. Admissibility of the evidence depends upon that assessment. Each section is directly concerned with admissibility.
46 Examination of the language of s101(2), particularly when contrasted with the language of ss97 and 98, yields yet another of those mysteries of the Evidence Act that have diverted litigation lawyers, judges and commentators for nigh on a decade. Ss97 and 98 are, in their terms, concerned with admissibility. Unless the evidence under consideration has significant probative value, it is not admissible to prove either tendency or coincidence.
47 S101(2), by contrast, if literally construed, appears to envisage that the evidence is admissible and is admitted ("evidence ... that is adduced by the prosecution ..."), but then to place restrictions - restrictions to the point of annihilation - on the use that can be made of that evidence. Why s101(2) was so framed, is, as I have suggested above, a mystery. The only sensible way to approach s101(2) is to treat it, like ss97 and 98, and almost in defiance of its language, as a rule of admissibility, and put unproductive debate about its terminology to one side. It seems to me that s101(2) has generally been construed as a rule with respect to admissibility. It was, for example, so treated in Ellis: see [54]:
"54 The appellant's intention on this appeal was that the Pfennig v The Queen [[1995] HCA 7; 182 CLR 461] was required to be applied in any case in which the exclusionary rule found in s101(2) falls to be applied. ..." (emphasis added)
48 Shillington ADCJ answered the ss97 and 98 questions by declaring himself satisfied that the crimes were "of striking similarity: and concluding that "the provisions of s97 and s98 are satisfied." This was plainly intended to be read as a finding that the evidence would have significant probative value. He answered the s101 question directly, finding that the probative value of the evidence would substantially outweigh any prejudicial effect on the applicant.
49 In both of these conclusions, in my opinion, his Honour was plainly correct. Indeed, the proposed grounds of appeal do not attack the conclusions but rather the process by which his Honour arrived at his conclusions.