R v Lakin

The appeal concerned the sentence imposed on the appellant, Lakin, by a trial judge for serious violent offences. The dispute on appeal centred on whether the sentencing judge had adequately considered the appellant's mental illness and other mitigating factors when determining the head sentence and non-parole period. The appeal was heard by the Full Court of the Supreme Court of South Australia, comprising Kourakis CJ, Gray and Peek JJ.

The primary legal issue before the Full Court was whether the sentencing discretion had miscarried due to the judge's failure to properly address the role of the appellant's mental illness in the commission of the offences. Relatedly, the court considered whether the judge had made adequate allowance for the appellant's remorse, contrition, and prospects of rehabilitation, and whether the starting point for the sentence was manifestly excessive.

Kourakis CJ, with whom Peek J agreed, allowed the appeal. His Honour found that the sentencing judge had failed to address the actual part played by the appellant's mental illness in the commission of the offences. The Chief Justice reasoned that if the judge had considered this significant factor, it would likely have been reflected in his Honour's sentencing remarks. The failure to have regard to the effects of the appellant's serious mental illness on his conduct constituted a miscarriage of the sentencing discretion. Consequently, the head sentence was reduced by one year to six years and six months, and the non-parole period was reduced to four years. Gray J dissented, finding no error in the sentencing judge's description of the offending as "unprovoked," nor any misapprehension regarding the appellant's criminal history or the weight given to medical and psychological opinions. His Honour also found that the judge had not overestimated the need for deterrence and that the reduction for contrition and remorse was within the judge's discretion.