R v Sumner

The Director of Public Prosecutions appealed against the sentence imposed on the respondent, Sumner, by the District Court of South Australia. The appeal concerned the adequacy of the sentence for offences of attempted kidnapping and causing harm with intent to cause harm, which arose from an incident on 19 August 2012 where the respondent attacked a 70-year-old woman. The respondent had a significant criminal history, including multiple sexual offences committed against strangers when he was a teenager, and subsequent offences of aggravated serious criminal trespass, assault, and indecent assault.

The primary legal issue before the Full Court of the Supreme Court of South Australia was whether the sentence imposed by the District Court was manifestly inadequate, justifying the Director's appeal. The court was required to consider the nature and circumstances of the offences, the respondent's extensive and concerning criminal history, and the principles governing Crown appeals against sentence, particularly in relation to serious or violent offenders.

The court reasoned that the original sentence was manifestly inadequate given the gravity of the offences and the respondent's history of violent and sexual offending. The attack on the elderly victim was described as involving gratuitous violence. The court applied the principles of sentencing, considering the need for punishment and deterrence, and the protection of the public. The court determined that a significantly higher sentence was necessary to reflect the seriousness of the crimes and to maintain an adequate standard of punishment.

Consequently, the Full Court granted permission to appeal, allowed the appeal, and set aside the original sentencing orders. The court imposed a single sentence of 10 years imprisonment for both offences, with a non-parole period of eight years, backdated to commence on 20 August 2012. One judge, Blue J, agreed with the outcome but would have imposed a sentence of nine years imprisonment with a non-parole period of six years and six months, also backdated.