No fundamental defect going to the root of the proceedings
67Sixthly, contrary to the applicant's contentions, the mere fact of an irregularity having occurred in the separation of a jury under s 54(1)(b), does not result in a fundamental defect in the trial. Whether an irregularity is so serious as to cause a mistrial depends on whether the irregularity is such a departure from the essential requirements of the law that it goes to the root of the proceedings: Wilde v The Queen [1988] HCA 6; 164 CLR 365 at 373, a case concerning the application of the proviso in s 6(1) of the Criminal Appeal Act.
68In Brownlee v The Queen [2001] HCA 36; 207 CLR 278, the High Court considered the essential features of trial by jury in the context of determining the constitutional validity of s 22 and s 54 of the Jury Act in the trial of a Commonwealth offence. The particular issue was whether s 54 of the Jury Act, which permitted jury separation, was incompatible with the constitutional guarantee of a trial by jury in respect of Commonwealth offences in s 80 of the Constitution. The High Court held that there was no incompatibility.
69In reaching this conclusion, the High Court referred to the historical evolution of the jury system and noted the common law position regarding jury separation - that jurors, after empanelment, were required to remain together until they had delivered their verdict: R v Ketteridge [1915] 1 KB 467 - had been relaxed by the time of Federation. Thus, Gaudron, Gummow and Hayne JJ stated at [64] that absolute sequestration of the jury was no longer regarded as an essential element of trial by jury by the time of Federation. Further, Gleeson CJ and McHugh J observed at [25] that s 54(1)(b) "modifies the common law, but the common law itself changed over time", and concluded at [28] that:
"It is not an essential requirement of trial by jury that there be an inflexible general rule forbidding separation during the whole or any part of a trial."
70Callinan J similarly observed at [188]-[190]:
"... the fact that a jury may, and has separated, will not necessarily impair or destroy the essential character of the trial as a jury. If in fact, by reason of separation a juror or jurors act improperly or become subjected to influences to which they should not have been subjected, that circumstance will require consideration and an appropriate response by the trial judge."
71The proposition to be derived from Brownlee for present purposes, is that strict confinement of a jury is not an essential feature of trial by jury. What is an essential feature is that the jury should deliberate upon its verdict uninfluenced by an outsider to the trial process. Thus, where an irregularity has occurred, the Court should inquire into the extent and consequences of the irregularity upon the criminal trial in order to determine whether the particular irregularity has or would invalidate a verdict.
72To the extent that the applicant sought to drive support from the historical position at common law - that separation upon a jury retiring was an irregularity of such seriousness as to require a quashing of any conviction: R v Ketteridge - the applicant ignored the historical relaxation of the common law regarding jury separation as explained by the High Court in Brownlee v The Queen. Moreover, cases such as R v Chaouk [1986] VR 707 demonstrate that even at a time when the Juries Act 1968 (Vic) was silent about the question of jury separation, not every case of separation would necessarily result in a miscarriage of justice such that the proviso on an appeal against conviction had no application. At 716, Fullagar J observed that he wished to reserve the question whether all guilty verdicts would necessarily be set aside if there had been a jury separation. Similarly, Hampel J observed at 717 that the facts of Chaouk "cannot be categorised as minor or insignificant irregularity of the kind considered in R v Alexander [1974] 1 WLR 422 or R v Dempster (1980) 71 Cr App Rep 302". The latter two cases involved communication between jurors and non-jurors which were not considered to be material irregularities on an appeal against conviction. Nonetheless, they are useful illustrations that not all jury irregularities necessarily invalidate a jury verdict.
73Seventhly, the approach to non-compliance with s 54(1)(b) of the Jury Act, suggested by the applicant, would lead to absurd consequences, which cannot have been intended by the legislature. It is not to be supposed that any separation whilst the jury is deliberating, in the absence of the trial judge making an order permitting separation to occur, has the consequence that the jury ceases to be a jury, or invalidates a jury verdict.
74The circumstances of jury separation will vary in their nature and extent. Such cases would include where one of the jurors was late in arriving at the Court one morning during the retirement of the jury: R v Locchi (1991) 22 NSWLR 309, or if, taking the present case, the court sheriff had realised the mistake in allowing the jurors to leave the jury room, just as they exited the court precincts, but was able to recall all of them to the Court before they had departed for home.
75In each case, whether there has been a material irregularity and departure from the procedure for jury separation whilst the jury is deliberating, such that there would be a miscarriage of justice, will depend on the nature and consequences for the fairness of the trial of the non-compliance with the procedural requirement or condition in s 54(1)(b) of the Jury Act.
76In this case, an irregularity having occurred, the trial judge was satisfied, after hearing an application for discharge of the jury, that it would not affect the verdicts. The applicant does not complain in these proceedings that the trial judge's exercise of discretion miscarried in any way. Rather, in an attempt to engage the supervisory jurisdiction of this Court, the applicant's complaint is elevated to the level of asserting that the discretionary decision to refuse to discharge the jury was infected by jurisdictional error, as was the consequential "direction" by the trial judge to the jury to continue their deliberations. For the reasons given above, this submission has no basis and should be rejected.