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Court of Criminal Appeal

John Shaopeng Yin v Regina

[2007] NSWCCA 350

Theft & property

Citation: John Shaopeng Yin v Regina [2007] NSWCCA 350
Court: NSW Court of Criminal Appeal
Date: 18 December 2007
Judge(s): Mason P, Barr J, Bell J

Background

The appellant had pleaded guilty to seven offences of armed robbery committed across a series of attacks on massage parlours in Sydney in August and September 2002. Most of those offences were committed jointly with a co-offender, Qing An, though each man was also separately involved in at least one offence that did not involve the other. The appellant was charged with several offences under the more serious aggravated form of robbery, attracting a maximum of 25 years imprisonment, while the co-offender faced charges under the less serious form, attracting a maximum of 20 years.

The appellant received a non-parole period of eight years and three months with a total term of eleven years, having been granted a 25 per cent discount for his guilty pleas. The co-offender, who contested all charges and was convicted of eight offences after trial, received a non-parole period of seven years and six months with a total term of ten years and six months. The appellant argued this outcome gave him a justifiable sense of grievance under the parity principle: he had pleaded guilty and received what appeared to be a heavier effective sentence than a co-offender who had been convicted after trial.

The appeal arose following a referral under section 78 of the Crimes (Appeal and Review) Act 2001. Both co-offenders had previously appealed separately, and neither of those earlier appeals had resolved the disparity question in the appellant's favour.

  • Whether the appellant had a justifiable sense of grievance when comparing his sentences with those imposed on his co-offender, thereby engaging the parity principle
  • Whether the parity principle applies, or applies with full force, when co-offenders have been charged with different offences as a result of prosecutorial decisions
  • Whether the overall sentencing outcomes for the two offenders were proportionate, having regard to the differences in charges, pleas, and individual criminality

Decision

Barr J, with whom Mason P and Bell J agreed, dismissed the appeal. The court accepted that the parity principle requires equal justice between co-offenders, in the sense that sentences should bear due proportion to each other having regard to differences in culpability and individual circumstances. The relevant test, drawn from the High Court's decision in Postiglione v The Queen (1997), is whether a marked disparity exists that gives rise to a justifiable sense of grievance.

The court noted, however, that the appellant and his co-offender had not been charged in an identical manner. The appellant had pleaded guilty to more serious forms of robbery, including offences under section 97(2) of the Crimes Act carrying a higher maximum penalty, while the co-offender was charged and convicted of less serious forms of the same conduct. The court observed that comparison of an appellant's sentence with that of a co-offender convicted of less serious offences is attended with particular difficulty, a concern reinforced by earlier Court of Criminal Appeal authority expressing reservations about extending the parity principle to offenders charged differently as a result of prosecutorial decision-making.

Barr J also noted the remarks of the bench that had heard the co-offender's earlier appeal, which had found that the co-offender himself had no justifiable sense of grievance when comparing his sentence to the appellant's. While those remarks could not determine the outcome of the present appeal, the court found them consistent with its own view that both offenders had been treated about equally and fairly in all the circumstances.

In the court's assessment, the sentencing judges had appropriately accounted for the significant differences between the two men, including the more serious offences to which the appellant had pleaded guilty and the discount applied for those pleas. No unjustifiable disparity was established.

Orders Made

  • Appeal dismissed.

Key Takeaways

  • The parity principle, as confirmed in Postiglione v The Queen, requires due proportion between co-offenders' sentences rather than arithmetical equality, and a sentence will only be reduced for disparity where a marked imbalance gives rise to a justifiable sense of grievance.
  • Applying the parity principle becomes significantly more complex where co-offenders have been charged with offences of different gravity as a result of prosecutorial decisions, and the Court of Criminal Appeal indicated that comparing a sentence with that of a co-offender convicted of less serious offences is particularly difficult.
  • A guilty plea discount granted to one offender does not, without more, establish an unjustifiable disparity when compared with the outcome for a co-offender who contested charges and was convicted of differently framed offences after trial.
  • Remarks made in a co-offender's earlier appeal about the relative fairness of the sentences are a relevant consideration, though they cannot be determinative when the original appellant was not a party to that appeal.
  • In dismissing the appeal, the court reaffirmed that the appropriate comparison is not merely the headline figures of non-parole periods and total terms, but the full picture of charges, culpability, and circumstances that explains those figures.

Legislation and Cases Referenced

Legislation:
- Crimes Act 1900 (NSW), ss 97(1), 97(2) (armed robbery and aggravated armed robbery)
- Crimes (Appeal and Review) Act 2001 (NSW), s 78 (referral to Court of Criminal Appeal)

Cases:
- Postiglione v The Queen [1997] HCA 26; (1997) 189 CLR 295 (parity principle)
- Lowe v The Queen (referenced in Postiglione, foundational parity principle authority)
- Spinks v R [2007] NSWCCA 52 (reservations about extending parity principle to offenders charged differently)