15 The prevalence of armed robbery committed by relatively youthful offenders who are addicted to drugs and who steal to finance their addiction is well recognised.[6] Armed robbers affected by drugs are unpredictable and have the potential to injure or kill a victim should things go wrong. One community interest which bears upon both the head and minimum sentence to be fixed is the need of the community to be protected from a violent offender, "especially one whose prospects for rehabilitation are bleak".[7] In such circumstances, protection of the community and deterrence, both specific and general, are very important in the sentencing process.[8]
16 An exceptionally long minimum term would invite attention as to whether the period fixed was justified and whether due regard has been given to mitigating factors.[9] The appellant's non-parole period is slightly in excess of three-quarters of the head sentence. Though the non-parole period is unusual that does not in itself entail error.[10] Though one would ordinarily expect reasons to be given for such a course, a mere failure to do so does not inevitably bespeak error.[11] As Batt JA observed in R v VZ[12] a sentencing judge is not bound to give reasons for imposing an unusually lengthy non-parole period and in many instances it would be obvious why a period beyond the usual range, broadly defined, was selected. This is such a case.
17 His Honour described the appellant as having an appalling record over a comparatively short time. The appellant had 129 previous convictions from 30 court appearances and had been sentenced to numerous terms of imprisonment between 1995 and the date of his sentence for the present offences. Those prior convictions included convictions for assault with intent to rob, burglary, causing serious injury recklessly, aggravated burglary, robbery, armed robbery and numerous drug and alcohol related offences. While a serious criminal history does not necessarily call for the imposition of more severe sanctions it will ordinarily impact upon the sentencing process as indicating "the offender's moral culpability, his prospects of rehabilitation, his dangerous propensity and the community's need for protection and the increased importance of specific deterrence as a factor in sentencing, having regard to the failure of more moderate penalties as a means of deterrence."[13]
18 The appellant's conduct in committing these offences was very serious. In each case the appellant confronted a young and vulnerable female victim at her place of employment. On two of those occasions the appellant threatened the victim with a syringe with the intention of terrifying his victims. The seriousness of this form of modus operandi was the subject of recent consideration by this Court in DPP v Spiteri.[14]
19 A psychiatric condition is not necessarily to be considered solely as a mitigatory factor. It may also mean that the offender poses a greater danger to the community.[15] The learned sentencing judge noted that the appellant had an antisocial personality disorder which was not amenable to treatment. The medical evidence led his Honour to conclude that, although his bipolar disorder might be improved with treatment, there could be no confidence that psychiatric treatment would significantly alter the appellant's impulsive behaviour or that he was likely to choose to cease using drugs of dependence. No challenge could be made to his Honour's conclusion that the appellant had virtually no prospects for rehabilitation despite his relative youth.
20 Because of the seriousness of these offences and because the appellant's prospects for rehabilitation were negligible, little scope for leniency could arise.[16] As a consequence it was open to the learned sentencing judge, as he determined, to give particular weight to both specific and general deterrence. The considerations to which his Honour referred provide a sufficient and plain explanation as to why his Honour fixed an unusually lengthy non-parole period. Having regard to the serious nature of the offences and the appellant's personal circumstances, it cannot be said that it was not open to the sentencing judge to follow the course that he did.
21 I would dismiss the appeal against sentence.