E FINDINGS AND RESOLUTION
31 The High Court recognised in Fox v Percy [2003] HCA 22; (2003) 214 CLR 118 that there had been a growing body of research (even a generation ago) that cast doubt on the ability of judges to make accurate credibility findings based on demeanour. As was explained (at 129 [31] per Gleeson CJ, Gummow and Kirby JJ):
Considerations such as these have encouraged judges, both at trial and on appeal, to limit their reliance on the appearances of witnesses and to reason to their conclusions, as far as possible, on the basis of contemporary materials, objectively established facts and the apparent logic of events.
32 After having the opportunity of hearing from all three principal witnesses, Ms Leach, Ms Mann and Ms Barons, each of which was cross-examined, it seems to me the likely course of events emerges fairly clearly. In reaching my conclusions I have had regard to my impressions of each of the witnesses in giving their evidence, but also to the inherent probabilities that emerge from the whole of the evidence including the contemporaneous notes and the sequence of events as recorded in the documents in evidence.
33 I am conscious of the fact that giving evidence was no doubt a stressful experience for Ms Leach but regrettably, she was not an impressive witness. She was often non-responsive and was defensive and confrontational with the cross-examiner. Moreover, I had the distinct impression that she was, at times, pausing and seeking to fashion her evidence to suit the forensic exigencies as she perceived them.
34 By way of contrast, Ms Mann and Ms Barons were very careful and impressive witnesses who made appropriate concessions. To the extent that their evidence conflicts with that of Ms Leach, I unhesitatingly prefer the evidence of Ms Mann and Ms Barons.
35 One critical aspect of the evidence of both Ms Mann and Ms Barons had a crystal clear ring of truth about it. They both said, based on their usual practice, that if words had been said in their presence which in their view left the impression that following settlement, Ms Leach would be free to pursue the Sexual Harassment Claim, they would have sought to correct those statements. Ms Mann deposed that consistently with the way Ms Leach gave her evidence before me, Ms Leach communicated during the conciliation conference in a way by which she moved "quickly across topics in an unstructured or 'stream of consciousness' fashion": Mann Aff [17.2]. This is entirely consistent with matters relevant to the Sexual Harassment Claim being mentioned by Ms Leach, and efforts being made by the conciliator to bring Ms Leach back to the point of the conciliation conference. But as to the notion something was expressly said by Ms Gates to the effect that Ms Leach was free to bring a Sexual Harassment Claim following resolution with the Commonwealth, Ms Mann said that if there was a suggestion made to that effect (specifically, that any other claim, other than the workers' compensation claim, would still be available to Ms Leach after a settlement) she would have sought to correct this either immediately or via Ms Gates. As Ms Mann did not do so, her best recollection is that the issue never arose: Mann Aff [18.1].
36 Similarly, Ms Barons explained in her affidavit that in her entire experience of dealing with unfair dismissal matters on behalf of the Commonwealth since 2009, she did not recall any deed agreed to by the Commonwealth that enabled further claims of the nature of the Sexual Harassment Claim to be made: Barons Aff [20]. The only carve-outs were for Comcare claims. To allow the Commonwealth to have some potential further liability for a claim like the Sexual Harassment Claim would be, in the view of Ms Barons, contrary to the purpose of settling the matter for final resolution.
37 Substantially similar evidence to that given in their affidavits was given orally by Ms Mann (at T52.45-T53.7) and Ms Barons (at T59.27-30 and T59.42-T60.11).
38 I accept this evidence of Ms Mann and Ms Barons. Apart from the fact that both witnesses were, in my impression, witnesses of truth, this evidence is inherently likely given the obviously careful way each of Ms Mann and Ms Barons went about their dealings with Ms Leach and the counter-intuitive notion that the Commonwealth would be attracted to resolving only some claims by the release procured from Ms Leach (other than the Compensation Claim, which was expressly excluded). In reaching this conclusion, I have had regard to the fact that Ms Mann and Ms Barons (in giving their affidavit evidence and in cross-examination) were reluctant to deny that things alleged by Ms Leach to have been said may possibly have been said: see [27] above. Rather, as noted above, they gave evidence in terms of being unable to recall or having no recollection. Although this gave me pause when I initially read their evidence in chief, after I had the opportunity of seeing them give evidence, I am entirely satisfied that neither witness is prone to any overstatement, and their reluctance to be definitive was not due to an acceptance that it was more likely than not that something was said, but instead can be attributed to a cautious desire not to overstate their evidence and pretend to demonstrate a definitive recollection of the conciliation conference. If anything, this had the ultimate effect of buttressing their evidence as to their usual practice and what they would have done in the counterfactual (had they been cognisant that Ms Leach had been told or thought she could maintain her Sexual Harassment Claim against the Commonwealth).
39 Having made these comments, there are core parts of the evidence of Ms Leach that I also accept. In particular, as noted above, and consistently with a subjective belief that in signing the Deed she was only settling the Unfair Dismissal Claim, Ms Leach made a claim to Comcare in relation to how she had been treated during her employment with Mr Burston, including her alleged sexual harassment: T28.37-8, T29.32-8 and T34.17-21. Ms Leach said (at T45.35-40) she took this course rather than pursuing other avenues because, inter alia, private solicitors are expensive.
40 Further, I accept Ms Leach's evidence she believed that making a claim with Comcare was one way of pursuing her Sexual Harassment Claim and the other treatment she allegedly experienced at the hands of Mr Burston.
41 Accordingly, on balance, and notwithstanding the Commonwealth's submissions to the contrary, I am satisfied that notwithstanding the terms of the Deed, Ms Leach did genuinely (but mistakenly) believe that in signing the Deed, this step would not prevent her maintaining the claims that she wished to pursue, being the Compensation Claim and the Sexual Harassment Claim.
42 To state the obvious, however, this is a necessary but not sufficient basis upon which Ms Leach seeks relief. The objective theory of contract stands in command of the field: Taylor v Johnson (1983) 151 CLR 422 (at 429 per Mason ACJ, Murphy and Deane JJ). Although I am prepared to accept Ms Leach was operating under a genuine misapprehension, her mistake was entirely unilateral and her subjective misapprehensions as to the nature of the bargain she struck with the Commonwealth, without more, are neither here nor there. The inquiry relates to the state of knowledge of both parties concerning the existence, character and extent of the liability in question (as well as the actual intention of Ms Leach): Grant (at 129-30 per Dixon CJ, Fullagar, Kitto and Taylor JJ). Hence, the real question for me in the present circumstances is whether the misapprehensions: (a) were known to be held by Ms Leach by representatives of the Commonwealth; and/or (b) came about by reason of some action or conduct of the Commonwealth which renders the Deed being enforced according to its terms by the Commonwealth as being contrary to conscience.
43 It is here that the fundamental difficulty from Ms Leach emerges. For reasons explained above, I am comfortably satisfied that if something had have been said during the course of the conciliation conference which expressly conveyed to Ms Leach that she could continue to bring a Sexual Harassment Claim (in contradistinction to the Compensation Claim) then this would have been something which would have been the subject of comment, at some time prior to the formalisation of any settlement, by Ms Mann and/or Ms Barons. The fact that there was no such correction leads me to the conclusion that something to this effect was simply not said. For the same reason, I do not think there was anything said by Ms Leach in clear, understandable terms which indicated to Ms Mann and/or Ms Barons that Ms Leach believed that post-settlement she could sue the Commonwealth for the Sexual Harassment Claim. I am fortified in this view because the contemporaneous documents disclose that Ms Mann dealt with Ms Leach in a careful and fair way, conscious of the fact that she was dealing with an unrepresented litigant. Moreover, I am satisfied that at no time after the conciliation conference was: (a) it expressly or implicitly represented by Ms Mann that the consequence of any settlement would be to allow Ms Leach to agitate the Sexual Harassment Claim; or (b) Ms Leach's misapprehension communicated to Ms Mann in such a way as to put the Commonwealth on notice that she was operating under any mistaken understanding as to her ability to maintain the Sexual Harassment Claim against the Commonwealth.
44 As Sir Owen Dixon emphasised, a party bearing the onus of proof will not succeed unless the whole of the evidence establishes a "reasonable satisfaction" on the preponderance of probabilities such as to sustain the relevant issue (Axon v Axon (1937) 59 CLR 395 (at 403)); and the "facts proved must form a reasonable basis for a definite conclusion affirmatively drawn of the truth of which the tribunal of fact may reasonably be satisfied" (Jones v Dunkel (1959) 101 CLR 298 (at 305)). Despite Mr Moorhouse, during the course of his able submissions, saying everything he possibly could say to advance Ms Leach's cause, for the reasons I have explained, Ms Leach has fallen well short of proving, in accordance with s 140(1) of the Evidence Act, the factual premises upon which her claim for declaratory relief is based: see [24] above.
45 Having said that, it is now perhaps understandable why Ms Leach laboured under the misapprehension she did. During the conciliation conference it is clear that she raised a number of complaints which went beyond the Unfair Dismissal Claim. No doubt she was entreated from time to time during the course of the conciliation conference, in general terms, by Ms Gates, to direct her attention to the subject of the conciliation. This is to be expected. Further, I have little doubt something was said about her ability to continue with her Compensation Claim with Comcare. The likely problem is that Ms Leach in her own mind believed that her being able to approach Comcare with a complaint extended to her being able to make the Sexual Harassment Claim (being the very step she later took).
46 This analysis of the evidence makes intuitive sense but is fatal to Ms Leach attaining relief. There is nothing in the material that I have seen which shows departure by the Commonwealth from acceptable standards of fair dealing with Ms Leach or any conduct by which the Commonwealth contributed to any misapprehension that was held by Ms Leach or was aware of it. In those circumstances, the claim for declaratory relief must fail.