The points concerning Mr Dupon's evidence
29The applicant's first two points concern Mr Dupon's evidence and it is convenient to deal with them together. I accept the argument that the acceptance by the jury of Mr Dupon's evidence about hearing the whispered conversation in the courtyard in the aftermath of the shot must have been critical to their determination that the applicant was guilty. It is clearly a critical aspect of the Crown case theory that two people, a male and female, were present near the scene of the crime in its immediate aftermath; after all, no case was ever made against the applicant that she pulled the trigger.
30Two points are made on behalf of the applicant about this. First, there is now an availability for expert evidence to be led to demonstrate that Mr Dupon's evidence was not credible in the sense of being an unreliable reconstruction. Secondly, expert and lay evidence has been obtained to demonstrate that the applicant's debarked poodle, Brodie, emits a low husky or raspy noise like a guttural whisper.
31Section 108C creates an exception to the exclusionary credibility rule established by s102 Evidence Act 1995 (NSW). It is in the following terms:
(1) The credibility rule does not apply to evidence given by a person concerning the credibility of another witness if:
(a) the person has specialised knowledge based on the person's training, study or experience, and
(b) the evidence is evidence of an opinion of the person that:
(i) is wholly or substantially based on that knowledge, and
(ii) could substantially affect the assessment of the credibility of the witness, and
(c) the court gives leave to adduce the evidence.
(2) To avoid doubt, and without limiting subsection (1):
(a) a reference in that subsection to specialised knowledge includes a reference to specialised knowledge of child development and child behaviour (including specialised knowledge of the impact of sexual abuse on children and their behaviour during and following the abuse), and
(b) a reference in that subsection to an opinion of a person includes, if the person has specialised knowledge of that kind, a reference to an opinion relating to either or both of the following:
(i) the development and behaviour of children generally,
(ii) the development and behaviour of children who have been victims of sexual offences, or offences similar to sexual offences.
32The text of the provision does not provide much guidance as to its meaning and operation. Clearly, paragraph (a) engages the provisions of s79 of the Act. From this it is plain that it is providing for the admission of expert evidence - properly so called - only, within the usual constraints which attend the admission of evidence in that category: Dasreef Pty Ltd v Hawchar [2011] HCA 21; 243 CLR 588.
33Bearing these constraints in mind, it may be said that the enactment of the provision was a response to judicial observations like those, albeit in a civil case, of Gleeson CJ, Gummow and Kirby JJ in Fox v Percy [2003] HCA 22; 214 CLR 118 at 129 [31]:
Further, in recent years, judges have become more aware of scientific research that has cast doubt on the ability of judges (or anyone else) to tell truth from falsehood accurately on the basis of such appearances. 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. This does not eliminate the established principles about witness credibility; but it tends to reduce the occasions where those principles are seen as critical [footnote omitted].
34The significance of the requirement for leave should not be overlooked. Clearly leave would not be granted unless the court is satisfied the experts opinion could substantially affect the assessment of the credibility of the particular witness concerned. In this regard, it may be necessary to show that the relevant field of specialised knowledge adds value to what ordinary adults would understand about the fallibility of human memory and the means by which its reliability may ordinarily be tested.
35The Victorian Court of Appeal in MA v R [2013] VSCA 20 considered s108C of the Victorian Uniform Evidence Law, which is materially similar to the NSW provision. In the course of finding that general opinion evidence concerning how a child may react to sexual abuse was admissible, Redlich and Whelan JJA at [100] expressed the view that:
The occasion should be relatively rare where an expert should be invited to express an opinion as to the actual behaviour of the victim... and whether it advanced the probabilities of a fact in issue. Where a party seeks to have an expert go so far, the obligation of the trial judge under s 137 of the Evidence Act to exclude evidence if its probative value was outweighed by its prejudice may assume greater significance.
36I acknowledge the obvious; in some circumstances the expert evidence may be admissible to bolster a witness's credibility. But that is not relevant here.
37Given the administrative nature of the task that I am required to undertake I think it appropriate for me to put the question of leave to one side, as it is clear from his qualifications and curriculum vitae that Dr Ian Coyle is an expert psychologist qualified to speak about the workings of the mind including memory. Having said this, it must be borne in mind that the primary function of the expert is to impart so much of his or her branch of specialised knowledge as will equip the tribunal of fact with relevant tools necessary to decide the case: Makita (Australia) Pty Ltd v Sprowles [2001] NSWCA 305. However to the extent to which Dr Coyle has expressed matters within the ken of ordinary folk, reflecting upon issues like delayed reporting or prior inconsistencies, I would regard his evidence as not wholly or substantially based upon his specialised knowledge: s79(1) Evidence Act; Clark v Ryan (1960) 103 CLR 486. Ordinary members of the community well understand the significance of such matters.
38Leaving aside what Dr Coyle says about "lack of realism", which seems to refer to considerations of overall consistency with other accounts, prior inconsistent statements and the evidence of others who denied receiving an early report from Mr Dupon, all of which I would regard as not dependent upon specialised knowledge, the gravamen of his opinion relates to the effects of attention and expectancy upon perception. Dr Coyle effectively says that Mr Dupon "simply wasn't paying attention". And in any event if the sound of a voice speaking emanated from his neighbour's place the natural tendency is to expect the person speaking is his neighbour. These factors, coupled with what he regards as inconsistency with other evidence, according to the expert, are consistent with reconstruction (Dr Coyle says re-creation) "of his memory of the night in question". Dr Coyle says this calls into question, in a very significant way, Mr Dupon's reliability as a witness.
39I do not regard the availability of Dr Coyle's evidence as making any difference in the present case. First, the non-expert issues of late reporting, prior inconsistency, lack of consistency with other relevant evidence, lack of attention and mistake were all explored appropriately with the utmost thoroughness by learned trial counsel. Counsel also relied upon these matters in seeking to persuade the jury that they should not accept Mr Dupon's evidence. Secondly, so far as expectancy effect is concerned, this was dealt with most effectively, with respect, in the summing up of trial judge, Adams J.
40The Court of Criminal Appeal had regard to these matters, and I will set out paragraphs [121] - [123] of Sully J's judgment dealing with counsel's argument:
[121]...[Counsel's] submissions respecting Mr. Dupon's evidence occupy the whole or part of some 14 pages of transcript: T 1889-1902. The flavour of the submissions, read fairly as a whole, emerges in their very opening paragraphs:
"Before I discuss the evidence of Mr. Dupon it's clear in the Crown case that his credibility - I won't say this - his account is a very important aspect of the Crown case. It's important from Catherine Friend's perspective to scrutinise his account of the voices in the courtyard with care. Not only is it an important part of the Crown case, but the evidence of Mr. Dupon that he told the police from the very start about the voices in the courtyard has to be evaluated by reference to what others say in the call, the people he says he spoke to about this, other police officers.
By looking at the internal consistency of what he records in his witness statement about these issues, the unfolding nature of his witness statements is also another telling aspect which in my submission you could take into account in evaluating this evidence. His knowledge of what is omitted from the witness statement and his reaction in that regard, his contemporaneous account of what he heard and the accuracy of those statements and other issues associated with his account.
Now one can take into account, in evaluating the reliability of his observations about the sounds and the voices in the courtyard, the delay in disclosing the written form, going to the authorities and saying there were voices in the courtyard, and you can take into account my cross-examination of Mr. Dupon in determining his reliability in this regard................... " [T 1889,1890]
[122] Counsel's submissions continued with a careful and detailed canvass of aspects of Mr. Dupon's evidence at trial and of aspects of the contents of the various pre-trial statements that Mr. Dupon had made to the investigating police. Towards the end of this portion of his closing address, counsel put these propositions:
"......... Ultimately, I would be submitting to you when you come to evaluate Mr. Dupon's evidence, you will have the benefit of his Honour's directions of law regarding that evidence. Catherine Friend does not say that Mr. Dupon is necessarily wrong about his recollections, however, we don't concede it is right what he says. He may quite genuinely be mistaken about everything associated with this. Of course, he made no concession that he was mistaken. I have read to you when I put to him "you may be mistaken".
But by that stage, the stage of this trial, he has furnished the last witness' statement, the one I have just taken you to, the one of March 2004, where he records voices in the courtyard for the first time. Of course, he says to you, the Jury, he told all and sundry, in terms of police officers, three of them - well no, two of them, not Sergeant Hohnen - those police officers, that salient fact.
I will take you through the rest of the evidence in that regard. But I will be submitting to you this: that in the course of human affairs, common sense will dictate that an individual who has finally prepared a witness' statement about voices in the court-yard two years after the event may be extremely reluctant to admit any form of concession they are mistaken. It is very significant evidence in this trial against Catherine Friend. Let us not make any distinction in that regard. There would be, in my submission, a natural reluctance to admit any sort of mistake." [T 1900, 1901]
[123] Counsel rounded out his submissions concerning the evidence of Mr. Dupon by putting to the jury the following submissions:
"So what we have is Mr. Dupon's evidence that he told police officers about this very important piece of information. Junee can't recall it and Sparkes says it wasn't volunteered or disclosed to him. And the first police officer to actually ask Mr. Dupon about his evidence, it is not disclosed, at least in terms of the note.
Common sense would dictate to you, even if you were investigating a murder such as this, that hearing voices in the court-yard after a discharge of a firearm is very significant and important and if told to you, you would remember it. In considering Mr. Dupon's evidence as a whole, I would ask you to consider he is mistaken about this, certainly about the identification of the sex of the individual, a male individual, mumbling in the court-yard. It can be TV in the middle of the night. It is a quiet night, apparently. He can hear the TV. Could be the dogs. Could be my client. You have heard my client's explanation, she was subject to cross-examination on the issue." [T 1902]
41Having reviewed the material, I am driven to comment that Adams J dealt with Mr Dupon's evidence with impeccable fairness and great clarity. Again, I will extract the relevant parts from Sully J's judgment:
[124] It is useful to complete the present survey of the relevant course of events at the trial, by noting the way in which his Honour dealt with Mr. Dupon's evidence in the summing-up. Early in the summing-up his Honour gave the jury the following general directions and observations:
"So then, this was no more than a recollection of something that took only a few fleeting seconds, to which he was not paying any particular notice and when he was going off to bed to resume the sleep that had been so rudely interrupted by the loud bang.
I make the common sense observation, members of the Jury, but of course it is a matter for you, that it is actually quite difficult when you are relying on hearing alone and even when you are paying attention, to place where any noise is coming from. When you are not really paying any attention to it, you have no reason to assess the reliability or question the accuracy of your immediate impression. In this respect, the impression that the voices were, as it were, following him along the corridor might be significant. It is a matter for you, because it might suggest some other source than the court-yard for them, since voices might well have been carried by the peculiarities of high paling fences and surrounding building. When that happens, when the sound is being bounced around, it might well seem to follow you, you may think. This is just part of ordinary, human experience.
Moreover, the power of assumption is very significant. If, during the few seconds in question, Mr. Dupon assumed that he was hearing voices from the court-yard, perhaps that was indeed where Catherine Friend's voice came from. It might be very difficult for him later to separate the assumption from the actual experience. Of course, once the idea is planted, probably unconsciously, it becomes by and large, does it not, the reality. It cannot be effectively re-examined or revisited. In other words, if you didn't pay attention at the time, later thinking about it doesn't help. You are still thinking about something that you didn't pay much attention to at the time.
So that in this case, upon this consideration, the evidence of Mr. Dupon that he heard the voices coming from the court-yard is truly his honest evidence. It is this difficult area between the experience and the opinion or belief that a witness has about it, that you need to explore in asking yourself whether it is safe to rely on Mr. Dupon's evidence, not that he heard voices but where those voices were coming from.
Now, the evaluation of these matters, it is a matter for you and I expect that I am merely bringing to your attention questions that you have already thought about and no doubt discussed. However, I feel that I would be very remiss in my duty if I did not impress upon you the need to be very cautious indeed about regarding the evidence of Mr. Dupon about hearing a conversation between the accused Catherine Friend and a male in the court-yard at 28 Wyattville Drive as being reliable enough to act upon. If, on the other hand, after thinking about the matter carefully and exercising the necessary caution that you must, given the whole of the circumstances and the importance of that question, you are persuaded that indeed he did hear that evidence, well that would be a very important factor which you would bring to bear in your consideration of the issues in this case, in particular the case of Catherine Friend." [SU 18, 19, 20 and 21]
[125] Towards the end of the summing-up, and having made a carefully detailed canvass of Mr. Dupon's evidence at trial, his Honour said:
"Now, the parties rely in different ways on the way in which Mr. Dupon brought this conversation to the attention of police. I think the only matter that I want to refer you to specifically, because you have got all his statements, is the point that there was a door knock. The police had gone around asking people what they had seen and heard. Constable Hohnen was one of those police. I do not think his notebook is before you because it was extracted in oral evidence.
The important point, you might think, about his evidence is this. He is asking whether anything was, in particular, seen and heard, and Mr. Dupon talked about hearing the bang and does not talk about hearing the voices. Now, it may be that he simply overlooked it. It did not occur to him that it was important. There are a number of possible explanations. Nevertheless, it does seem that the first time he is asked about what he heard that might be important, he does not advert to the voices at all. That point is perhaps less significant than it might otherwise appear, though it's a matter for you, in that he doesn't mention that he heard Catherine Friend's voice and it's not disputed that indeed she did say something in the patio. The strange thing you might think, ladies and gentlemen, about this aspect of the evidence is this, especially when it comes to Mr. Dupon's statement to the police, and that is he assumed; he told you that conversation was between, he had heard a conversation between Jason and Catherine, but he learnt very early in the morning that Jason was shot and that that was the bang that he heard or almost certainly the bang that he heard, yet he did not, it seems, realise that it followed that the voice that he heard could not be that of Jason Friend. He simply never made the link." [SU 81, 82, 83]
42In my opinion, with respect to him, Dr Coyle's expression of similar ideas adds no value to the thorough and careful way in which the important question of the reliability of Mr Dupon's account was put to and left with the jury by trial counsel and the trial judge. I think it fair to say, all of the essential issues discussed by Dr Coyle were thoroughly and appropriately canvassed in the passages I have quoted above.
43Thirdly, I mean no disrespect to Dr Coyle when I point out that his report does not adequately identify the rules developed by his branch of specialised knowledge for assessing the matters he addresses in a way which would assist a jury to assess the credibility, in the sense of reliability, of Mr Dupon's evidence. His opinion falls into the category of the bare ipse dixit.
44Fourthly, there was simply no issue at the trial that the applicant was in the courtyard in the immediate aftermath of what proved to be the gunshot. There was no issue that she audibly uttered the words "shut up". She said so in her own evidence in chief: 1704.45T; 1705.20 - 30T; 1707.55 - 1708.15T, 24th June 2005.
45This brings me to the second point concerning Mr Dupon's evidence; that is that he may have been mistaken in that the "male voice" he heard was in fact the rasping of the debarked poodle, Brodie. This is the inference that the fresh evidence of the veterinary surgeon, Dr Adams, and the lay witness, Ms Jane Miles, is said to support.
46Once again however, that hypothesis consistent with innocence was fully explored at the trial (1707-1708T):
Q. What's your recollection about the sequence of events about the dogs, and saying "shut up" to the dogs that night?
A. I just remember when, when I woke up to the loud noise, I put Georgia back down in the bed and then I went out the front, and as I come back inside the house the dogs were going berserk and they were running around the house and towards the back-door, and they were scratching at the back-door but they didn't want to go out, so.
Q. You went outside into the courtyard?
A. I let - I let the dogs out. They went out, and then Priscilla was barking - the other dog wasn't able to bark because she was debarked - but they both went out and she was barking.
Q. Would you have said anything else, except "shut up"?
A. Possibly I would have.
Q. Possibly what?
A. Gotten angry at her to tell her to calm down, come back inside.
Q. How would you have said that, if you had said it?
A. I don't know. I was half asleep. But I wouldn't have been too happy, because I wasn't very happy anyway because I hadn't been to sleep for a few days.
Q. What was the status of the TV at this time?
A. The TV was on.
Q. How do you know it was on?
A. The TV is always on in my house. It is the first thing I do in the morning, and I go to sleep with it on every night.
Q. Where was Georgia at this time?
A. I had left her on the mattress. She had woken up, but when I put her back down she had gone back to sleep.
Q. In paragraph 30 I think you indicate in fact that you had turned the TV off?
A. No. I turned the - I turned the TV on when Jason was going to bed and I was going to go to bed, and he had put her in her cot and he came back and said to me, I think it was something along the lines of, that it was a short sleep, a cat nap. I got her out of the cot, and that is when I was going to sleep in the lounge room and I turned the TV on.
Q. So do you know why it is "off" rather than "on"?
A. No, I don't, but I know I turned it on because I got the remote control off the entertainment unit and it was beside the bed.
Q. You say, just before the reference to the TV, you "locked the back door". What was the status of the doors in the house in relation to your dogs?
A. Normally the back screen door, security mesh screen door and the back glass sliding door off the family room
Q. Off the kitchen?
A. Kitchen, yes. I generally, as a rule, used to keep them open enough for Priscilla and Brodie to go in and out to the toilet.
47The applicant adhered to this account in cross-examination: 1762.25 - 1763.10T. She said she was in the paved area of the courtyard just outside the sliding family room door. She said Brodie "was not making any noise because... she couldn't bark". However jurors are likely to know, from their own experience of life, that debarked dogs emit a raspy whispering sound. Her account is that the poodle Priscilla was barking (1762.20 - 45T). The applicant's evidence was that she yelled out "shut up". This may raise a question about how Mr Dupon would have heard the raspy bark over the full bark, which I need not tarry to consider.
48Mr Dupon gave evidence of a male and female voice talking and that one of those voices talking was the applicant's, because he heard her say shut up "as she normally says to her dogs": 589.25 - 55T. He said the voices were speaking in a normal conversational tone and that he did not take any notice. The voices were coming from the courtyard next door. But in chief he said he didn't hear any dogs at the time (591.5-30T).
49In cross-examination for the applicant, he said the voices were not whispering and that he really "didn't take any notice of what they were saying". The only clear words he heard were "shut up": 654.5-10T. He assumed they were his neighbours, Jason and Catherine Friend: 655.40T. At 656.5T he said:
The assumption, the reason I have taken there were two people in the courtyard, was because I heard the sounds of a male and a female voice, yes.
He denied he was mistaken about hearing a male voice (691.20T).
50At the earlier trial before Hidden J, when asked about barking dogs, he gave the following evidence (at 758.40-55T):
Q: This issue of what you heard at that time, it could have been barking dogs?
A: Well I didn't hear any dogs but it could have. I didn't hear any dogs that night.
Q: One of the dogs is debarked to your knowledge?
A: No I didn't realise that, no...
Q: You heard the feet of the dogs, did you not?
A: Well I can't recall 100 per cent. I thought I heard the feet of the dogs.
This line of cross-examination does not seem to have been pursued at the third trial, but the issue that Mr Dupon mistook the sound of the dogs including the debarked poodle for a male voice was fully rehearsed and put to the jury.
51Moreover, as I have indicated above, Adams J effectively gave the jury a Shepherd direction in relation to Mr Dupon's evidence about the conversation, that is, that his evidence was an essential link in the circumstantial chain and that the jury could not convict unless satisfied of it beyond reasonable doubt. The Court of Criminal Appeal was satisfied that from what his Honour said, the jury would have understood that Mr Dupon's evidence about the conversation was an indispensable intermediate fact: [141] - [142] per Sully J.