Some principles
8 The foundation for such a ground of appeal is s 6(1) of the Criminal Appeal Act 1912, whereby an appeal shall be allowed if the court is of the opinion that the verdict of the jury should be set aside "on the ground that it is unreasonable, or cannot be supported, having regard to the evidence … or that on any other ground whatsoever there was a miscarriage of justice".
9 Gleeson CJ and Hayne and Callinan JJ said in MFA v The Queen [2002] HCA 53; (2002) 213 CLR 606 at [34], in relation to asserted inconsistency of verdicts, that "[t]he ultimate question concerns the reasonableness of the jury's decision". Unreasonableness is determined according to the test in the joint judgment of Mason CJ and Deane, Dawson and Toohey JJ in M v The Queen (1997) 191 CLR 439 at 493, namely, whether the court thinks that upon the whole of the evidence it was open to the jury to be satisfied beyond reasonable doubt that the accused was guilty. Their Honours said in MFA v The Queen at [35] that this test "must be applied in deciding whether a conviction on one or more counts of sexual offences, when the accused was acquitted on other counts, is unreasonable, or cannot be supported, having regard to the evidence".
10 In TK v R [2009] NSWCCA 151 it was pointed out that M v The Queen also recognised that a verdict must be set aside if on any other ground there was a miscarriage of justice. It was suggested that where the unreasonableness is because of asserted inconsistency of verdicts there is a "new dimension added to the conventional M test", going beyond the quality of the evidence and extending to the significance for the guilty verdict of the verdict of acquittal: see at [119]-[135] per Simpson J, Latham J agreeing at [204]. The wider inquiry "include[s] matters outside the evidence, such as the impact on the reasonableness of the verdict of guilty of what may be discerned to be the explanations for the acquittals": at [128].
11 It is not necessary to explore whether there is truly an addendum to the test derived from M v The Queen, or only an additional dimension within that test. Consistency or inconsistency of verdicts will always come down to what was open to the jury upon the whole of the evidence. Examination of the evidence, with an appreciation of how it was presented and left to the jury, will reveal whether there is a rational explanation for a verdict of guilty on one count and a verdict of not guilty on another count. In MFA v The Queen, for example, it was held at [36] that there was an explanation in the evidence of the differences between the verdicts, and that it was therefore open to the jury to be satisfied beyond reasonable doubt of guilt on two counts notwithstanding unwillingness to convict on the other counts.
12 If a rational explanation can not be discerned, it can be said that it was not open to the jury upon the whole of the evidence to be satisfied beyond reasonable doubt in coming to the guilty verdict, or it can be said that there was otherwise a miscarriage of justice. The formulation will rarely be of moment, and is not in the present case. Ultimately, as Wood CJ at CL pointed out in R v Markuleski [2001] NSWCCA 290; (2001) 52 NSWLR 82 at [237], on reviewing the entirety of the case the court may maintain a comfortable satisfaction as to the guilty verdict upon the evidence separately considered concerning it.
13 Compromise verdicts are a different matter. As Simpson J said in TK v R -
"81 The proposition that the verdicts reflect compromise, and the proposition that verdicts are unreasonable are not identical, and are not two sides of the same coin. Not only do they involve different processes of analysis, and different principles of law; if made out, they have different consequences. A conclusion by an appellate court that verdicts of guilty are unreasonable has the inevitable consequence that verdicts of acquittal will be entered. A conclusion by an appellate court that verdicts of guilty are the result of compromise by a divided jury will properly result in orders for a new trial on those charges: see R v Crisologo (1997) 99 A Crim R 178."
14 There is nonetheless a close connection between compromise verdicts and unreasonableness or other miscarriage of justice derived from inconsistency of verdicts. That the verdicts reflect compromise may be said to appear from their inconsistency, perhaps together with other matters. Compromise may be seen as the explanation for the inconsistency, although not a rational explanation. This is difficult territory: apart from the close connection abovementioned, while there is a conceptual distinction between compromise verdicts and the jury considering that "justice is met by convicting an accused of some [offences] only", see MFA v The Queen at [34] later cited, factual distinction may be troublesome. It is not necessary to explore it.
15 In MFA v The Queen at [34] Gleeson CJ and Hayne and Callinan JJ referred to consideration of the significance for the guilty verdict of the not guilty verdict in the particular case, and said that the significance must be considered in the context of the system within which juries function and of their role in that system. Their Honours continued -
" ... A number of features of that context were emphasised in MacKenzie [ MacKenzie v The Queen (1987) 190 CLR 348]. They include the following. First, as in the present case, where an indictment contains multiple counts, the jury will ordinarily be directed to give separate consideration to each count. This will often be accompanied by a specific instruction that the evidence of a witness may be accepted in whole or in part. Secondly, emphasis will invariably be placed upon the onus of proof borne by the prosecution. In jurisdictions where unanimity is required, such as New South Wales, every juror must be satisfied beyond reasonable doubt of every element in the offence. In the case of sexual offences, of which there may be no objective evidence, some, or all, of the members of a jury may require some supporting evidence before they are satisfied beyond reasonable doubt on the word of a complainant. This may not be unreasonable. It does not necessarily involve a rejection of the complainant's evidence. A juror might consider it more probable than not that a complainant is telling the truth but require something additional before reaching a conclusion beyond reasonable doubt. The criminal trial procedure is designed to reinforce, in jurors, a sense of the seriousness of their task, and of the heavy burden of proof undertaken by the prosecution. A verdict of not guilty does not necessarily imply that a complainant has been disbelieved, or a want of confidence in the complainant. It may simply reflect a cautious approach to the discharge of a heavy responsibility. In addition to want of supporting evidence, other factors that might cause a jury to draw back from reaching a conclusion beyond reasonable doubt in relation to some aspects of a complainant's evidence might be that the complainant has shown some uncertainty as to matters of detail, or has been shown to have a faulty recollection of some matters, or has been shown otherwise to be more reliable about some parts of his or her evidence than about others. Thirdly, there is the consideration stated by King CJ in R v Kirkman , and referred to in later cases: it may appear to a jury, that, although a number of offences have been alleged, justice is met by convicting an accused of some only. And there may be an interaction between this consideration and the two matters earlier discussed."
16 McHugh, Gummow and Kirby JJ delivered separate joint reasons, but said at [97] that they did not differ from the other members of the Court on, amongst other things, the operation of the principles in MacKenzie v The Queen.
17 In a sexual assault case the explanation for difference between verdicts may lie otherwise than in the complainant's credibility. Of importance to the present case, even where the prosecution case rests substantially on the complainant's credibility there can be an acquittal on a count without rejection of credibility. In MFA v The Queen Gleeson CJ and Hayne and Callinan JJ went on, at [35], to reject as erroneous the proposition -
" … that where multiple offences are alleged involving the one complainant, then verdicts of not guilty on some counts necessarily reflect a view that the complainant was untruthful or unreliable, and that an appellate court should consider the reasonableness of guilty verdicts on the basis that the complainant is a person of damaged credibility".
18 To similar effect had been judgments in R v Markuleski. Spigelman CJ, with whom Grove J and Carruthers AJ relevantly agreed, said at [125] that a reasonable jury is not obliged to have a doubt about the occurrence of some incidents about which it has only a complainant's uncorroborated evidence if they have a doubt about other such incidents, when in the latter but not the former case there is evidence contradictory of or failing to support the evidence of the complainant. Wood CJ at CL referred at [218] to the importance of not assuming too readily that a difference between verdicts demonstrates inevitably a want of credibility in the complainant or central witness, and posed at [234]-[235] situations where different verdicts might be attributed to want of credibility on the one hand or a host of other reasons on the other hand. His Honour also referred at some length, at [227]-[238], to a jury returning a "merciful verdict", see the reference in MFA v The Queen above to it appearing to a jury that justice is served by convicting on some counts only.
19 To the same effect is R v PMT [2003] VSCA 200; (2003) 8 VR 50 per Buchanan JA, Charles and Chernov JJA relevantly agreeing -
"[25] There is no general rule that in cases where several sexual offences depend upon the testimony of the complainant, acquittal on some counts compels the conclusion that the jury must necessarily have regarded the complainant generally as an untruthful witness or that her credibility was undermined in respect of the counts upon which they have convicted. The circumstances of a particular case may justify different verdicts. In MacKenzie v R Gaudron, Gummow and Kirby JJ said:
' … the respect for the function which the law assigns to juries (and the general satisfaction with their performance) have led courts to express repeatedly, in the context both of criminal and civil trials, reluctance to accept a submission that verdicts are inconsistent in the relevant sense. Thus, if there is a proper way by which the appellate court may reconcile the verdicts, allowing it to conclude that the jury performed their functions as required, that conclusion will generally be accepted. If there is some evidence to support the verdict said to be inconsistent, it is not the role of the appellate court, upon this ground, to substitute its opinion of the facts for one which was open to the jury.'