was the evidence tendency evidence?
54 Section 97(1) of the Evidence Act is concerned with evidence of a particular kind. So far as relevant to the circumstances of the present case, it applies where
"evidence of the…conduct of a person [is tendered] to prove that a person…had a tendency to act in a particular way".
55 In the absence of any argument to the contrary, the primary Judge proceeded on the basis that the evidence to be given by the prospective tenants was tendered for the purpose identified in s 97(1). That is, his Honour implicitly accepted that the deponents would give evidence that Ms Kelly had engaged in conduct (the making of representations about pedestrian traffic, likely turnover and profitability of the tenants' business) in order to prove that she had a tendency to act in a particular way (to make similar representations to other prospective tenants), thereby making it more likely that she made one or more of the alleged representations on those topics to Mr Williams in her conversations with him.
56 The appellants distinguished between tendency evidence, which is caught by s 97(1), and circumstantial evidence probative of the fact that Ms Kelly made the alleged representations to Mr Williams, which (so they argued) is not. Mr Moshinsky contended that the evidence of the five tenants went beyond mere tendency or propensity evidence and bore directly on the fact in issue. It was therefore, so he argued, admissible without the need to satisfy the requirements of s 97(1).
57 The distinction drawn by the appellants seems to me to be unsound. In Hoch v The Queen (1988) 165 CLR 292, Mason CJ, Wilson and Gaudron JJ pointed out (at 296) that "[s]imilar fact evidence is circumstantial evidence". (In that case, the evidence was of indecent acts allegedly committed on three boys in circumstances said to be strikingly similar). In D F Lyons Pty Ltd v Commonwealth Bank (a case involving similar fact evidence of representations made on behalf of a bank to borrowers other than the applicant), Gummow J said (at 603) that
"whilst evidence of a tendency or propensity to conduct of the kind alleged and in issue may be relevant and admissible as such, it is circumstantial evidence of a dangerous kind, particularly in a criminal case, because of the prejudice it engenders".
See also Harriman v The Queen (1989) 167 CLR 590, at 602, per Dawson J. In other words, merely to label evidence of previous conduct as circumstantial evidence does not demonstrate that it is tendered for a purpose other than to prove that a person had a tendency to act in a particular way. Any evidence to which s 97(1) applies is likely to be circumstantial evidence.
58 In a classic essay focussing on similar fact evidence in criminal cases, Professor Cowen and Mr Carter analysed what they described as the "[p]overty of settled principles in the midst of plenty of conflicting authority": Z Cowen and P Carter, "The Admissibility of Evidence of Similar Facts: A Re-Examination", in Essays on the Law of Evidence (1956), at 106. The authors approached the task by carefully defining their terms (at 110-111):
"1. 'Similar fact evidence' means evidence tending to show that the accused behaved on another occasion or on other occasions in a way to a greater or lesser extent similar to the way in which the prosecution alleges as part of its case that he behaved on the instant occasion.
2. 'Similar fact evidence which is relevant' is such evidence which tends to show that the accused did in fact behave on the instant occasion in the way in which the prosecution alleges.
3. 'Similar fact evidence which is relevant via propensity' is such evidence where the tendency of the similar fact evidence to establish a propensity in the accused is a link in the process of 'tending to show that the accused did in fact behave on the instant occasion in the way in which the prosecution alleges'. (Such evidence may be relevant in addition otherwise than via propensity.)
…
5. 'Similar fact evidence which is relevant otherwise than via propensity' is evidence which falls within definition (2) supra and has relevance other than that described in definition (3). (Such evidence may be relevant in addition via propensity.)
6. 'Similar fact evidence which has multiple relevance' is similar fact evidence which is relevant via propensity and otherwise than via propensity...". (Emphasis in original.)
59 The terminology used by Cowen and Carter in their essay has not been universally adopted. But the definitions help make the point that similar fact evidence (as that term is defined in the essay) is ordinarily relevant to a fact in issue in the proceedings because it tends to establish a propensity in the relevant person and because that propensity is a link in the process of tending to show that the person did in fact behave in the particular way alleged in the case. An example often given of tendency or propensity evidence of this kind is R v Ball [1911] AC 47, where evidence of a prior incestuous relationship between a brother and sister was admitted to prove guilty conduct on the occasion in respect of which they were charged.
60 As the definitions employed by Cowen and Carter indicate, similar fact evidence relevant to a fact in issue via propensity may also be relevant for a reason other than that it proves that a person has had a tendency to act in a particular way. Evidence of previous conduct may be relevant, for example, to rebut coincidence (in which case the "coincidence rule" laid down in s 98 of the Evidence Act would apply) or to explain the relationship between, for example, an accused and a complainant in a prosecution for a sexual offence: R v A H (1997) 42 NSWLR 702, at 708-709, per Ireland J; see generally S Odgers, Uniform Evidence Law (4th ed, 2000), par 101.5. If the evidence is admissible for another purpose, the requirements of s 97(1) need not be met, but the evidence cannot be used as tendency evidence unless the requirements of s 97(1) are also satisfied: Evidence Act, s 95(1).
61 The critical question in a case in which the tendency rule stated in s 97(1) is said to apply to evidence of conduct is whether the evidence is relevant to a fact in issue because it shows that a person has or had a tendency to act in a particular way. To adopt the language of Cowen and Carter, the question is whether the evidence of conduct is relevant to a fact in issue via propensity: insofar as the evidence establishes the propensity of the relevant person to act in a particular way, is it a link in the process of proving that the person did in fact behave in the particular way on the occasion in question?
62 This approach is consistent with the manner in which the Commission used the term "propensity" in its reports on Evidence. It defined the word this way (Interim Report, vol 1, par 785):
"Propensity. This word is defined by the Concise Oxford Dictionary to mean 'inclination or tendency'. It seems that this is the way it is used in the law, a tendency to act, think or feel in a particular way. Usually the propensity will be evidenced by specific conduct, leading (like character) to the inference that the person will behave in conformity with that propensity."
63 In my opinion, it is clear in the present case that the evidence tendered by Jacara was relevant (if at all) to the fact in issue (whether Ms Kelly had made any of the representations alleged to Mr Williams) only because it tended to establish a propensity on her part to act in a particular way (to make representations of a particular kind to prospective tenants of the Centre). The tendered evidence was therefore within s 97(1) of the Evidence Act. Assuming it satisfied the relevance requirement of s 56 of the Evidence Act, it was not admissible if the primary Judge formed the view that the evidence would not have significant probative value.
64 In reaching this conclusion I recognise that it may be difficult in any given case to determine whether the evidence of conduct is relevant "via propensity" and in no other way. Mr Moshinsky suggested that, in drawing the line, it is necessary to distinguish between evidence that attempts to prove the terms of representations by relying on the striking similarity of other instances of representations and evidence which tends to prove that a system was in fact in existence that allowed or encouraged such representations. He pointed out that just such a distinction had been drawn in cases involving alleged misrepresentations to prospective tenants, although none had involved s 97(1) of the Evidence Act: see, for example, Turner v Jenolan Investments Pty Ltd (1985) ATPR 40-571, at 46,635, per Beaumont J; Dayteck Pty Ltd v Glen Centre, (unreported, S Ct Vic, Eames J, 8 May 1995). Mr Moshinsky submitted that the evidence of the five tenants in this case was relevant because it suggested that Perpetual or Ms Kelly had a system or business practice in place involving the making of representations to prospective tenants.
65 In my view, evidence of conduct does not become relevant for a purpose other than proving that a person had a tendency to act in a particular way merely by asserting that the evidence tends to establish a system or business practice. Whether it is relevant for another purpose depends on whether or not proof of the tendency of a person to act in a particular way is a necessary link in the reasoning making the evidence relevant to a fact in issue.
66 In the present case, the evidence of the five tenants was relevant only to the fact in issue because it tended to show that Ms Kelly had a tendency to make representations to prospective tenants of the kind alleged by Mr Williams. In the absence of an assumption that Ms Kelly had such a propensity, the evidence of the five tenants could not establish a system or business practice whereby such representations were made by or on behalf of Perpetual. The tendency of their evidence to establish propensity on the part of Ms Kelly was a necessary link in the reasoning leading to the conclusion that Ms Kelly made the alleged representations during her meeting with Mr Williams.
67 By contrast, there will be cases where evidence of conduct is relevant to a fact in issue independently of its tendency to show that a person had a propensity to act in a particular way. If, for example, the evidence in a shopping centre misrepresentation case shows that the lessor's agent gave instructions that particular representations should be communicated to prospective tenants, that evidence would be admissible independently of s 97(1) of the Evidence Act. The evidence, if accepted, would go beyond proving that the agent had a propensity to make representations of the kind alleged. Rather, it would establish that the agent had set in place a system which, if implemented in the particular case, would have resulted in the representation being made to the applicant. The existence of the system, in the absence of evidence to the contrary, readily supports an inference that it was implemented in the particular case. The evidence of the system makes it more likely that the fact in issue (the making of the representation to the applicant) occurred, independently of the agent's propensity to act in a particular way.