Dunn v The King

The applicant, Dunn, appealed against his sentence for robbery armed with a dangerous weapon, arguing that the sentence was excessive compared to the sentence imposed on his co-offender. The case was heard by the High Court of Australia. Dunn's primary contention was that the disparity in sentencing, despite both he and his co-offender being convicted of the same offence, indicated a lack of parity in the judicial process. He contended that this constituted a justifiable sense of grievance, warranting a review of his sentence.

The court was tasked with determining whether the disparity in sentences between Dunn and his co-offender constituted a justifiable sense of grievance. This required an analysis of the principles underpinning sentencing, particularly the parity principle and the totality approach. The court had to consider whether the delay in sentencing, other sentences for separate offences, and the totality of the sentences imposed could justifiably account for the differences in the sentences. Furthermore, the court needed to assess if these factors could sufficiently mitigate the perceived disparity to negate any sense of grievance.

The High Court found that the differences in sentencing were not sufficient to establish a justifiable sense of grievance. The court acknowledged the principle of parity but held that the differences in sentences were explained by the delay in sentencing, additional charges, and the totality of the sentences imposed. These factors, the court reasoned, adequately addressed the perceived disparity, and thus no justifiable sense of grievance existed. The court granted leave to appeal but ultimately dismissed the appeal, upholding the original sentence.