McKenna v Tasmania

McKenna appealed against a sentence imposed by the Supreme Court of Tasmania. The appellant, who was 18 to 19 years old at the time of the offences, had pleaded guilty to multiple counts of burglary, stealing, and receiving stolen property. These offences involved the theft and dismantling of motor vehicles with an approximate total value of $180,000. The appellant's role in the criminal enterprise was described as minor, with the principal offending being carried out by a group of older individuals.

The central legal issue before the Full Court of the Supreme Court of Tasmania was whether the global sentence of three years' imprisonment, with a minimum non-parole period, was manifestly excessive, thereby justifying interference on appeal. The court was required to consider the appellant's age, his limited involvement in the offending, and any evidence of his subsequent reform.

The Full Court reasoned that while the value of the stolen property was significant, the appellant's youth and minor role were crucial mitigating factors. The court also gave weight to the appellant's desistance from further offending and the substantial progress he had made towards rehabilitation. Applying the principles of sentencing, the court concluded that the imposed sentence was indeed manifestly excessive in light of these considerations.

Consequently, the Full Court allowed the appeal and quashed the original sentence. A new sentence was imposed, consisting of 18 months' imprisonment, with a minimum non-parole period of nine months.