26When a trial judge has refused an application to discharge a jury, and the accused has been convicted, the appeal then brought to the Court of Criminal Appeal is not against the failure to discharge the jury but against the conviction: Maric v The Queen (1978) 52 ALJR 631 at 634. The question for this Court is whether, in the circumstances of the case, there was a miscarriage of justice: s 6(1) Criminal Appeal Act 1912.
27The issue on appeal is whether there was such a high degree of necessity for the discharge of the jury that the failure to order such a discharge has resulted in a mistrial: Crofts v The Queen [1996] HCA 22; 186 CLR 427 at 440. It is for the appellate court to determine whether a miscarriage of justice has occurred: Crofts v The Queen at 441; Samadi v R [2008] NSWCCA 330; 192 A Crim R 251 at 277-279 [133]-[138].
28However, much leeway must be allowed for the trial judge to evaluate considerations relevant to the fairness of the trial, bearing in mind that the judge will usually have a better appreciation of the significance of the events complained of, seen in context, than can be discerned from reading a transcript: Crofts v The Queen at 440-441. The trial judge is alive to the temper and the atmosphere of the trial, and this Court must make due allowance for that fact in determining whether there has been error in the exercise of discretion: El Hassan v R [2007] NSWCCA 148 at [15].
29The strength of this ground of appeal, particularly the submission that the trial judge should have enquired further of the jury as to the effect of the conduct on deliberations, depends very much on an assessment of the members of the jury and the seriousness with which they treated the conduct.
30The trial judge was correct to invite the members of the jury to express their concern in writing, if they considered the conduct an issue. Notwithstanding that request by the trial judge, the jurors did not express their concerns in writing and, in the view of the trial judge, with which view I agree, this indicated that the jurors were not overly concerned about the conduct. Further, the refusal to raise the matter formally indicates that the concerns raised with the sheriff's officer were in the nature of an alert to a possibility, rather than the expression of a view, that they were being intimidated.
31As has been accepted by counsel for the appellant, in his written submissions, it is insufficient for the purpose of determining that there has been a miscarriage of justice or an unfairness in the trial process that there is the mere possibility of a juror having acquired prejudicial or extraneous knowledge: R v Glennon (1992) 173 CLR 592 at 603.
32There is no evidence, or material, that goes beyond a mere possibility or that establishes that any juror was affected by the conduct in the manner suggested or otherwise. Particularly in circumstances where the trial judge is an experienced criminal law judge, with an extensive criminal law background and extensive experience with juries, the assessment of the trial judge must be given great weight.
33The circumstances of this case are significantly different from that with which Barr J was concerned in Munn & Miller [2006] NSWCCA 61. In Munn & Miller there was evidence that a particular juror had been subject to pressure overnight in order to intimidate him. In those circumstances, the Court found that a juror, whose task included evaluating the version of each accused, believed that one or more of them were trying to intimidate him. This was considered by the Court on appeal to involve a strong possibility that the juror would see the intimidation as an admission of guilt by one or more of the accused, or independent and extra curial evidence of guilt.
34In my view, in these proceedings, the manner in which the jury dealt with the issue points inescapably to the proposition that, in their minds, there had not been any intimidation or attempt at it. They were being cautious.
35The jury were concerned that this man's loitering be brought to the attention of the sheriff and dealt with appropriately. Preserving their anonymity after verdict seemed of more concern than any other issue. There is no evidence or suggestion that any member of the jury felt intimidated or associated this man's conduct with any one of the co-offenders.
36In those circumstances, the actions of the trial judge were appropriate and dealt with all of the issues of which there was concern. The trial judge's directions made clear to the members of the jury that the person they had noticed was not connected with any of the co-offenders, but, given the importance of their anonymity, they would be provided transport that would allay any issue in that regard.
37In my view, the jury have dealt with the matter most appropriately and the trial judge has, in turn, preserved the integrity of the trial and the verdict arising therefrom.
38In my view, the trial judge has dealt with this matter in a manner, which was wholly within jurisdiction and totally within his discretion. The issue raised is not one which involves a question of law alone and the appeal requires leave. The ground of appeal is insufficiently arguable to bring the matter within the range of those for which leave should be granted and I propose that leave be refused: see s 5(1)(b) of the Criminal Appeal Act 1912.
39For the foregoing reasons, I propose that the Court make the following order:
(i) Leave to appeal refused.