15 In taking into account the objective circumstances of the offence, his Honour observed that the offence was of a most serious kind and relied on the fact that the amount of heroin involved was more than four times the amount that constitutes a large commercial quantity. The Learned Sentencing Judge found that for the applicant's role as a courier, he was to receive between three and four thousand dollars, his arrest preventing him from receiving that money. Taking into account these and the subjective factors, his Honour found the appropriate penalty for this offence to be one of ten years imprisonment, before taking into account the plea of guilty and assistance to authorities.
16 In assessing whether there has been judicial error in sentencing, the principle enunciated in House v The King (1936) 55 CLR 499 has been universally applied, more recently in the High Court decision in Wong v R (2001) 185 ALR 233 in which Gleeson CJ enunciated the following statement of principle, when examining sentencing error, at para 58:
"Reference is made in House to two kinds of error. First, there are cases of specific error of principle. Secondly, there is the residual category of error, which in the field of sentencing appeals, is usually described as manifest excess or manifest inadequacy. In this second kind of case appellate intervention is not justified simply because the result arrived at below is markedly different from other sentences that have been imposed in other cases. Intervention is warranted only where the difference is such that, in all the circumstances, the appellate court concludes that there must have been some misapplication of principles, even though where and how is not apparent from the statement of reasons".
17 The kind of disproportion, therefore, that must be demonstrated between a sentence which has been imposed and that which should have been imposed on review before an error of law is found, is not simply a matter that can be reduced to an exercise in mathematics. The question that must be considered is whether the disproportion relied upon is so manifest on its face, as to be indicative of not merely idiosyncratic opinion, but rather a substantive error in law.
18 His Honour obviously took into account the youth of the applicant. In considering the youth of an offender as a recognised mitigating factor, I have considered what was said by James J in R v Lawson (1997) 98 A Crim R 463, in relation to drug couriers, at 475-476:
"However, in my opinion, it is not appropriate for a sentencing judge, first to say what sentence would be appropriate having regard only to the objective facts of the offence, and then to say what sentence should be imposed after taking into account the subjective circumstances of the offender. Such a stepped or tiered approach to sentencing has been criticised by this Court in such cases as R v Gallagher (1991) 23 NSWLR 220; R v Beavan (unreported, Court of Criminal Appeal, NSW, 22 August 1991) especially per Hunt CJ at CL at 14-15); R v Lett (unreported, Court of Criminal Appeal, NSW, 27 March 1995). In Lett Hunt CJ at CL said (at 9):
"Sentencing is largely an intuitive process. The influences of the different factors to be taken into account are infinitely various. Leaving to one side the special case of any discount for assistance to the authorities, it is both unnecessary and often unwise for a sentencing judge to identify a sentence which he or she regards as appropriate to the particular case without reference to particular factors and then to identify the sentence which is appropriate when those factors are taken into account: Williscroft [1975] VR 292 at 299-300; Holder [1983] 3 NSWLR 245 at 258, 270; Morton [1986] VR 863 at 868; Y oung [1990] VR 951 at 960; Gallagher at 230, 233, 257-258, 260-261; Beavan at 14-15. It is unwise because it will only multiply the possibility of error, and it is unnecessary because it will inevitably increase the incidence of arguable appeal points".
19 The Learned Sentencing Judge clearly adjusted the starting point of the sentence to take account of the applicant's subjective circumstances, including the applicant's gambling addiction, and the objective features of the offence. His Honour in his Remarks on Sentence identified the crime as a most serious one, at p5:
"The offence committed by the offender is a most serious offence, carrying as I said before, a maximum penalty of life imprisonment. The amount of heroin involved, being 4.05 kilograms is well in excess of the amount that constitutes a large commercial quantity",
and further stated, on p5:
"However, for an offence of this nature the penalty must include a strong element of general deterrence".
20 In R v Gallagher (1991) 23 NSWLR 220, Gleeson CJ, with whom Meagher JA and Hunt J agreed, held that when drawing on the statutory sentencing principles such as 16A of the Crimes Act 1914 (Cth) and, relevantly to this matter, s23(2) of the Drug Misuse Act, at 232:
"Care must also be taken to ensure that the ultimate sentencing result that is produced is not one that is so far out of touch with the circumstances of the particular offence and the particular offender that, even understood in light of the considerations of policy which support the principles set out above, it constitutes an affront to community standards. If sentencing principles are capable of producing an outcome of that kind, then that calls into question their legitimacy."