I should, at the outset, make it clear that while I have regard to the offender's criminal antecedents, I do not do so to impose punishment upon the offender in relation to any of those earlier matters. I take them into account, but only for the limited purpose of noting that the instant offence is not an uncharacteristic aberration. Rather it shows in this area, an attitude of continuing disobedience of the law. The mental illness findings, on the two occasions in the District Court, have some impact, however, on the present sentencing process. I shall of course, have more to say about the offender's mental status when I come to consider the manslaughter charge. As will become apparent, the offender has suffered from an underlying chronic psychotic disorder for many years and, although this did not appear to impact on the commission of the Commonwealth Bank robbery on 15 March 2002, there is a possibility that the offender's persistent mental condition was, in general terms, operative at the time."
17 His Honour recognised that the applicant's mental illness reduced the suitability of his sentence as a vehicle for general deterrence. However, he found that there was a need to impose a sentence which reflected an element of personal deterrence. His Honour found that the applicant had expressed remorse although he appears to have been sceptical about the extent to which there was a genuine recognition of his offending conduct.
18 His Honour concluded that because the applicant was to be sentenced for the armed robbery and for the more serious charge of manslaughter which raised questions of accumulation, it was appropriate to impose a fixed term of imprisonment for the robbery offence. His Honour determined that term as being the equivalent of the non-parole period that would have been appropriate if other than a fixed term had been imposed. The parties agreed that the sentence should be backdated to 27 March 2004, being the time at which, although a forensic patient, was the date he should be regarded as being held in custody in relation to the manslaughter charge. His Honour said:
"From a practical point of view, it is, in my opinion, a more satisfactory method of structuring the sentence by placing the fixed term sentence below or beneath the sentence for manslaughter and then later to consider questions of accumulation or concurrence. In addition, the manslaughter sentence is for a more serious crime and will involve the selection of a non-parole period and a balance of term. It is for those reasons that I will first impose the fixed term sentence and backdate it to the agreed date for commencement of the overall sentence, namely 27 March 2004."
19 In relation to the offence of manslaughter his Honour recognised the wide variety of sentences which have been imposed for such an offence. His Honour was mindful of the remarks of Hunt CJ at CL in R v Carlson (unreported, NSWSC, 16 October 1995) where his Honour said that where a conviction for manslaughter is based upon the partial defence of substantial impairment a sentence at the higher end of the range will normally be appropriate. However, his Honour emphasised that the sentence for any particular manslaughter must depend upon the facts of the particular case.
20 With respect to the applicant's medical condition the sentencing judge said:
107 Secondly, the Crown argued that the offender's capacity to understand events, and his ability to judge whether his actions were right or wrong were not impaired by his mental illness. The Crown submitted that the impairment impinged upon his capacity to control his homicidal urges. For that reason, it was submitted that the impairment, although substantial, was not as serious, for the purposes of gauging the level of culpability, as other types of impairment.