32It will be apparent from what has been said so far that each of the Applicant Dwayhi, the Applicant Bechara and Kertebani came before different sentencing Judges. The Applicant Dwayhi was sentenced in 2008. The Applicant Bechara was convicted after trial before a different Judge in 2009. Kertebani pleaded guilty before yet another Judge and was sentenced in 2010.
33Different courts have emphasised the desirability of related offenders appearing for sentence at the same time before the same Judge, and the problems which may arise where that practice is not followed.
34In Lowe v The Queen [1984] HCA 46; 154 CLR 606, Brennan J said at 617 that to "facilitate the comparison of conduct and antecedents it is desirable that, where practicable, co-offenders be sentenced by the same judge at the same time" .
35In Postiglione v The Queen , Gummow J, at 320, referred to Brennan J's comment and, after mentioning the facts, observed that:
"... this appeal does more than illustrate the problem that can arise in applying the parity principle to co-offenders where they are sentenced by different judges taking different views as to the relevant culpability of the two offenders in respect of those offences".
36Dawson J said in Lowe v The Queen at 622:
"No explanation was given to us or, apparently, to the Court of Criminal Appeal of the reason why the applicant and Smith entered their pleas before different judges at different times. The result was that, although they were co-offenders, they fell to be sentenced by different judges. Such a situation always carries with it a risk that there will be an unwarranted disparity between the sentences imposed and is to be avoided if at all possible. If it cannot be avoided, then at least the judge imposing the later sentence should inform himself of the sentence already imposed and the circumstances in which it was imposed. I hasten to say that Thomas J was so informed in this case."
37In R v Mercieca [2004] VSCA 170, Winneke P observed at [6] that the sentencing of co-offenders by different judges "creates the potential for differing views being taken by different judges of sentencing facts which are common to all co-offenders" .
38In R v Rodden [2005] VSCA 24, Vincent JA, at [28], stated succinctly the problems arising in this context:
"Of course, it would have been more satisfactory if all of the persons involved in this matter had been tried and/or sentenced at the same time, and certainly by the same judge. This case demonstrates the kinds of tensions that can appear to arise in the criminal justice system when this does not occur. When a situation arises in which co-offenders are dealt with separately, there may and often are differences in the substratum of facts upon which the different sentencing judges act and the impressions formed by them with respect to the relative roles, levels of responsibility and prospects of rehabilitation of the individuals involved. This, of course, would flow, in part, from the different emphases which can be expected to be placed on aspects of the offending behaviour and the circumstances of the offenders concerned."
39Where the usual practice is followed and related offenders are dealt with by the same Judge at the same time, there are significant advantages to the administration of the criminal law. In R v Swan [2006] NSWCCA 47, Barr and Howie JJ said at [71]:
"This was a case where the sentencing of both offenders was by the same judge on the same occasion. Where the same judge sentences two offenders at the same time and gives detailed reasons for imposing the sentences he did by having regard to the differing criminality of each, the differing subjective circumstances and the relevant sentencing principles, in our view this Court should be cautious before determining that one of the offenders has a justifiable sense of grievance just because of the different sentencing outcomes."
This statement was applied in Gurney v R; Willetts v R at [82].
40The observations of Brennan J and Dawson J in Lowe v The Queen and Barr and Howie JJ in R v Swan were cited by the Court of Appeal of the Australian Capital Territory where co-offenders had appeared before the same sentencing Judge, and the Court observed that the Judge "was in the best position to assess the relative criminality of the offenders and to distinguish the circumstances relevant to each of the offenders" and that "an appellate court will exercise caution before determining that the disparities between two sentences are unjust" : Pavicevic v R at [20]-[21] (Gray P, Refshauge and Ryan JJ).
41Similar sentiments were expressed by Winneke P in R v Spizzerri [2001] VSCA 49 at [10]:
"... an appellate court should be careful in concluding manifest disparity, particularly where the offenders have been sentenced by an experienced judge who has sentenced a large number of offenders engaged in the same criminal enterprise. In those circumstances the appellate court is at risk of upsetting the symmetry of the sentencing process employed by the judge and introducing its own disparity into that process. To that extent the Court is constrained in rectifying a disparity which it perceives. Because of those constraints, it runs the risk of 'tinkering'."
42In R v Nguyen; R v Pham [ 2010] NSWCCA 238, this Court referred at [13] to the "strong desirability of sentencing proceedings concerning co-offenders going ahead before the same Judge, and preferably at the same time" . It was said, at [24], that the listing of the proceedings in that case added a layer of complexity before this Court, and served to underline the desirability of related offenders being "dealt with by the same Judge following a single sentencing hearing".
43More recently, this Court has emphasised the desirability of related offenders being sentenced together and the problems which may arise where this is not done: Gurney v R; Willetts v R at [81].
44It is necessary for sentencing Courts and prosecutorial bodies to take steps to ensure, so far as it is reasonably possible, that related offenders are sentenced by the same Judge, and preferably at the same time following a single sentencing hearing. To reinforce this message, creation of relevant Practice Notes (by the Courts) and amendment to prosecution guidelines (by the Commonwealth and New South Wales Directors of Public Prosecutions) may be considered appropriate to give effect to the statements of Courts referred to above.
45It ought be appropriate, as well, for sentencing and appellate courts to enquire of counsel for an offender, who seeks to rely upon the parity principle, as to the steps taken by that offender or his legal representatives to ensure that he or she was sentenced by the same Judge, and at the same time, as any related offender, if the case is one where there were different sentencing judges.
46In my view, procedures of this type will serve the public interest in consistent and transparent sentencing of related offenders which forms, after all, part of the rationale for the parity principle itself.
47The variations and complications which arose in the present cases, from three discrete sentencing hearings before three different Judges, will become apparent from what follows.