Parity
50 The applicant also submits that there exists a justifiable sense of grievance in the sentence imposed upon him compared to the sentence imposed upon his male co-offender.
51 The principles of parity in sentencing have been dealt with on a number of occasions and are now well settled. Justice Dawson (with whom Wilson J agreed) summarised the principle in Lowe v The Queen (1984) 154 CLR 606, in which his Honour said:
"There is no rule of law which requires co-offenders to be given the same sentence for the same offence even if no distinction can be drawn between them. Obviously where the circumstances of each offender or his involvement in the offence are different then different sentences may be called for but justice should be even-handed and it has come to be recognised both here and in England that any difference between the sentences imposed upon co-offenders for the same offence ought not to be such as to give rise to a justifiable sense of grievance on the part of the offender with the heavier sentence or to give the appearance that justice has not been done." (154 CLR at 623)
52 His Honour Justice Dawson in a joint judgment with Justice Gaudron in Postiglione v The Queen (1997) 189 CLR 295 developed the statement in the following terms:
"The parity principle upon which the argument in this Court was mainly based is an aspect of equal justice. Equal justice requires that like should be treated alike but that, if there are relevant differences, due allowance should be made for them. In the case of co-offenders, different sentences may reflect different degrees of culpability or their different circumstances. If so, the notion of equal justice is not violated. On some occasions, different sentences may indicate that one or other of them is infected with error. Ordinarily, correction of the error will result in there being a due proportion in the sentences and there will then be equal justice. However, the parity principle, as identified and expounded in Lowe v R, recognises that equal justice requires that, as between co-offenders, there should not be a marked disparity which gives rise to a 'justifiable sense of grievance'. If there is, the sentence in issue should be reduced, notwithstanding that it is otherwise appropriate and within the permissible range of sentencing options."
53 The application of the principle embodied in the joint judgments and applied on innumerable occasions can often lead to some difficulty. In the present proceeding the notion of parity must take account of the circumstance that the co-offender was charged with, and sentenced for, a number of offences over and above those offences with which the applicant was charged. Further, in order to compare like with like, it is not simply a question of ignoring the sentence imposed for the further offences. The principle of totality of sentencing required his Honour to take account of the totality of the criminal conduct of the co-offender and this may have impacted, not only by virtue of the sentence imposed for the additional offences, in the sentence imposed for the charges common to both the applicant and the co-offender.
54 The sentencing judge, in this case, was, in relation to the co-offender, required to deal with two counts of aggravated acts of indecency pursuant to the terms of section 61O of the Crimes Act 1900 (NSW). For those offences his Honour imposed a term of imprisonment of eighteen months fixed term for each. His Honour also sentenced for an escape. Each such sentence being wholly concurrent with the other. Further his Honour dealt with the principle of totality by providing for partial accumulation. The sentencing judge said:
" Accumulation or Concurrence and the Principle of Totality
It is appropriate that there be a degree of partial accumulation of the sentences to reflect the fact that there was a difference in the type of offences committed and the fact that there were two victims, but in so accumulating I will bear in mind that the offences were committed on the one occasion and involved a considerable degree of overlapping criminality.
In relation to the offence of escape it is necessary that this sentence be completely accumulated upon the other sentence to be imposed on the [co-] offender."
55 It is clear that in these circumstances the principle of totality has been accommodated by the degree of accumulation or concurrence of the sentences rather than an alteration in the sentences provided. In those circumstances one can more readily compare the sentence imposed on the applicant and his co-offender.
56 The co-offender was sentenced for the robbery in company to a fixed term of three years' imprisonment. For the same offences the applicant was sentenced to the same fixed term of imprisonment. This accords with his Honour's stated intention and finding that in relation to the robbery the criminality of both offenders was identical.
57 In relation to the offence of aggravated detain for advantage, the co-offender was sentenced to imprisonment, in relation to the female victim, for a non-parole period of three years and nine months and the balance of the term of sentence being three years and nine months. That sentence commenced twelve months after the sentence for aggravated acts of indecency, which, in turn, commenced twelve months after the offence for robbery in company. In relation to the aggravated detain for advantage for the male victim, the same sentence was imposed and it was wholly concurrent with the sentence of the female victim.
58 In relation to the applicant the non-parole period was identical but there was imposed a lesser (by one year and nine months) parole period. In the circumstances faced by the sentencing judge, the finding was made, with respect correctly, that the offences of detain for advantage should result in a sentence imposed upon the co-offender that was greater than that imposed upon the applicant.
59 His Honour the sentencing judge also considered subjective circumstances and found that an extended period of parole supervision was necessary. He stated that he intended to structure the sentences so that "there is scope for a longer effective parole period than would otherwise be imposed but it would be a matter for the Parole Board to assess the utility of allowing the offenders the benefit of this based upon the attitudes that they exhibit in the future."
60 On the basis of these findings on the involvement in the detain for advantage, it is clear that the instigator of the offences and the person who took the leading role in the offences was the co-offender. In those circumstances, to impose a sentence on the applicant for these offences which, when compared to his co-offender, is identical in the non-parole period imposed but less in the parole period, gives rise to a sense of grievance which, in the circumstances, is justifiable.
61 The difficulty is that the offence is a serious one. To reduce the sentence to a level that brings the law into disrepute is impermissible, even if that requires inappropriate disparity. I intend to maintain the overall sentence and reduce the non-parole period to effect the same ratio as the sentencing judge effected for the co-offender. While this results in a sentence that is lower than would otherwise or ordinarily be justified, it is not so low as to warrant the non-application of the parity principle.