Secondly, as already noted, after reaching a total term of seven and a half years and determining that the appropriate period of actual custody was around five years, his Honour expressed his reluctance to find special circumstances but said that he was in effect providing a variation of the normal ratio to allow for the applicant's "psychological and mental problems and alcohol problems and to ensure that there is appropriate time period and appropriate supervision to ensure a fuller attempt at rehabilitation and resolving his anger management and alcohol problems after he is released."
30 Mr Hunt, who appeared for the applicant, submitted that the sentencing judge was required to take the mental health issues into account in his analysis of the objective seriousness of the offence, citing R v Way (2004) 60 NSWLR 16 at 86 and also citing s 21A(3)(j). He relied on the decision of Justice Sperling J in R v Hemsley (2004) NSWCCA 228 where his Honour identified mental illness as being relevant in the following ways: first, where it contributes to the commission of an offence in a material way, it is relevant to the offender's moral culpability. Secondly, mental illness may render the offender an inappropriate vehicle for general deterrence and so moderate that consideration. Thirdly, a custodial sentence may weigh more heavily on a mentally ill person. Finally, a countervailing consideration may arise, namely the level of danger which the offender presents to the community which may sound in special deterrence.
31 Mr Hunt submitted that to some degree the applicant falls into each of the first three categories outlined by Justice Sperling. The issue, however, is whether the sentencing judge fell into error in not proceeding on that basis, particularly having regard to the paucity of evidence as to the applicant's mental health, which was acknowledged by Mr Hunt.
32 In Hemsley, Sperling J referred to the situation where the mental illness contributes to the commission of the offence in a material way. In order for mental illness to be relevant to the assessment of culpability, it must be shown to have contributed to the offence. The unchallenged evidence in Hemsley was that due to a borderline personality disorder and depressive illness, the applicant there would not have been in a position to exercise rational and sound judgment with regard to participating in the offence.
33 The evidence before the sentencing judge in the present case did not address that issue. As already noted, the applicant had ingested a large amount of alcohol and cannabis over a period of many hours before committing the offence. He gave evidence at the sentence hearing that when he is drinking, marijuana sends him crazy. Accordingly, even if there had been direct evidence from an appropriate expert of a diagnosis of schizophrenia and of any consequent impairment to good judgment, the question of the extent to which that may have contributed to the offence was complex. In any event, there was no such evidence.
34 Mr Hunt submitted that the necessary connection could be drawn by way of inference. He submitted that the obligation falls to the sentencing judge to find such facts. I do not accept that submission. In my view on the evidence before the sentencing judge it would have been speculative for his Honour to conclude that the applicant's mental health issues were casually related to the commission of the offence.
35 Further, as noted in the written submissions of the Crown, it would be wrong to approach the matter as though an automatic consequence followed from the presence of a particular fact: see R v Engert (1995) 84 A Crim R 67 at 68. In particular, the existence of a causal relationship between the mental disorder and the commission of the offence does not automatically produce the result that the offender will receive a lesser sentence.
36 In my view, the remarks on sentence of the sentencing judge to which I have already referred disclose that his Honour did take the applicant's mental health into account when sentencing the applicant, to the extent that it was relevant. That is reflected in the discussion of the adjustment to the usual ratio to which I have already referred. In my view, no specific error has been demonstrated.
37 It remains to consider the first ground of appeal, that the head sentence and the non parole period were manifestly excessive. The question to be determined is whether the result embodied in the order is unreasonable or plainly unjust: see Markarian v R (2005) 228 CLR 357 at [25].
38 Mr Hunt submitted that the case was quite different from the circumstances in R v Newell (2004) NSWCCA 183. A comparison of those circumstances with those obtaining in the present case does not produce the conclusion that the present sentence was manifestly excessive.
39 In my view, the applicant has failed to demonstrate that the sentence was manifestly excessive. It was a sentence which, whilst it may be regarded as being towards the upper end of the range, was within the sentencing discretion of the sentencing judge.
40 The order I propose is that leave to appeal be allowed but that the appeal be dismissed.
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