Conclusions
(i) carjacking
85Counsel for the respondent provided the Court with a limited amount of statistical material relating to sentencing for this offence. The limitations on the use that can be made of such material are well known, and need not be repeated. In the end, some guidance can be obtained from statistics extracted from previously decided cases, but the greatest benefit is from a range of comparable cases having regard to their facts. No single previously decided case can dictate the result of a sentencing discretion.
86I agree with the sentencing judge that, objectively, this offence was a very serious instance of its kind, well above mid-range. I also agree that the respondent's culpability was significantly mitigated by his mental illness (and his personal history). I am not satisfied that this sentence was manifestly inadequate.
(ii) robbery in company
(a) the Marrickville offence
87I accept this much of the submission of counsel for the DPP: on the face of it, a sentence so far below the Henry guideline has the appearance of manifest inadequacy. Those features to which counsel for the DPP pointed (see [78] above) are all relevant, however they do not all unequivocally point to the elevation of the offence well above that profiled in Henry (whether being armed with metal bars, as distinct from a knife or the like makes the crime worse is difficult to say: either is likely to strike fear into the minds of the victims; here, each of two offenders was so armed, and the victims would have been well within their rights to anticipate that the offenders would not hesitate to use the weapons).
88I do not accept that the concealment of the offenders' faces with t-shirts evidences a significant degree of planning; to the contrary, many armed robbers have much more elaborate or sophisticated means of concealment. The use of t-shirts for that purpose suggests to me to the contrary: that little, if any, planning went into that aspect of the venture. The theft of the car 12 hours before is equivocal: there is nothing in the statement of facts, nor in the cross-examination of the respondent, that permits an inference that the vehicle was stolen for the purpose of this robbery, or for the purpose of robbery in general. I assume that the reference to the robbery having taken place at the end of the day's trading is intended to suggest that that was done for the purpose for maximising the potential gains, and this is a relevant consideration, pointing to some degree of planning. I accept, further, that the four victims were vulnerable, and that the proceeds, in excess of $2000, separated this offence from the Henry profile (although it is not altogether easy to see why the happenstance of what was in the till at the time of the robbery is a major factor).
89The respondent's parole status was an important factor, pointing (if it stood alone) to a heavier emphasis on specific deterrence (especially taking into account the remarkably short period between his release and his commission of these crimes), as did the respondent's criminal history, particularly the six (I leave out of this account the respondent's first armed robbery, committed as a 13 year old at the behest of, and in company with his mother) previous armed robberies.
90Similarly, the significant number of quite serious Form 1 offences suggested an increment on the Henry guidelines. But there were factors pointing the other way, most particularly the respondent's personal history of deprivation, mental illness and drug addiction. To that may be added his youth - he was 18 years of age at the time of the offences.
91Adopting the approach taken by Kirby J in R v Kelly [2010] NSWCCA 259 at [52], counsel for the DPP proposed that, where a plea of guilty is held to warrant a reduction of 25 per cent, the top of the Henry range sentence of 5 years translates to a head sentence of 3 years and 9 months, and the non-parole period to 2 years and 10 months; and the 4 year bottom of the range head sentence translates to a head sentence of 3 years, the non-parole period to 2 years and 3 months.
92In my opinion that approach is erroneous because it fails to take account of the fact that some reduction for the plea of guilty has already been factored in. This is commonly taken to be in the order of 10 per cent.
93The starting point of the Henry figures, before 10 per cent reduction, must be taken to be a range of between 5 years and 6 months (non-parole period 4 years and 1 months) and 4 years and 5 months (non-parole period 3 years and 4 months). It is from those starting points that a reduction for the plea of guilty ought to be made.
94Thus, after application of the 25 per cent reduction for the plea of guilty to the Marrickville offence, the range of available sentences (always assuming that Henry dictates the outcome, an assumption I do not make) would be a range of head sentence of 40 months (3 years and 4 months) with a non-parole period of 30 months (2 years and 6 months) to a head sentence of 50 months (4 years and 2 months) and a non-parole period of 37 months (3 years and 1 month).
95While I recognise and give due weight to those features identified by counsel for the DPP that would suggest a higher starting point, those circumstances are at least equally balanced by those pointing to the contrary.
96I accept that it would require very unusual circumstances to warrant a sentence as low as that imposed. In my opinion, those circumstances do here exist. Those circumstances are, as I have mentioned before, the respondent's mental illness and his personal history. To that I would add, importantly, the circumstances of his custody. For those reasons, I would not interfere with the sentence imposed in respect of the Marrickville offence.
(b) the Kingsford offence
97The sentence imposed in respect of the Kingsford offence, which occurred later in time, was less than that imposed in respect of the Marrickville offence, by a factor of 25 per cent. That, no doubt, is principally because her Honour was not required to take additional offences into account. Also to be factored into that equation, and pointing the other way, is the fact that that offence attracted a reduction for the plea of guilty of only 10 per cent. That is precisely the reduction hypothesised as having been applied in the Henry decision, bringing that range squarely into focus. The sentence imposed is significantly below that range.
98But the other factors remain. If I am correct in concluding that the sentence imposed in respect of the Marrickville offence was not, in the circumstances, manifestly inadequate, then, in my opinion, it follows that neither was this sentence.
(c) escape lawful custody
99The principal complaint made on behalf of the DPP in respect of this sentence was that her Honour gave undue weight to the sentences imposed on the three co-offenders, who had all escaped with the respondent. Particular emphasis was placed upon the observations of Knox DCJ, sentencing Williams, to the effect that, in his opinion, the 3 month sentences imposed on Haines and Kincheila in the Local Court were themselves manifestly inadequate. Knox DCJ doubled that sentence, feeling constrained not to go further. So far as I am aware, the DPP has not appealed against any of these sentences.
100In my opinion, his Honour's apprehension was well founded, as were those of the present sentencing judge. For her to have further increased the sentence would have created a real - and justifiable - sense of grievance in the respondent.
101There is currently, in this Court, some division of opinion concerning the approach to be taken where it is perceived that to allow a Crown appeal and impose an increased sentence might itself be the occasion that creates unfair disparity: see R v McIvor [2002] NSWCCA 490; 136 A Crim R 366; R v Borkowski [2009] NSWCCA 102; 195 A Crim R 1; Cvitan v R [2009] NSWCCA 156; and most recently R v Green and Quinn [2010] NSWCCA 313 at [98]-[133] per R S Hulme J.
102To the extent that R S Hulme J (with whom McClellan CJ at CL and Latham J agreed) opposed "a blanket rule" ([126]) against interfering, in a Crown appeal, in such a way as to create disparity, I also agree. Equally, I would not accept "a blanket rule" that the Court ought to disregard such a possible consequence of its decision. An application for special leave to appeal to the High Court in Green and Quinn was expedited: Green v The Queen; Quinn v The Queen [2011] HCATrans 71. (Special leave was granted on 8 April 2011.)
103This is a case, in my opinion, in which it is appropriate that potential unfair disparity be avoided. There were three co-offenders, two of whom were dealt with far more leniently (50 per cent) than the respondent, and one of whom was dealt with equally. Even if I were to find that the sentence was manifestly inadequate, I would decline to interfere on that discretionary ground.