R v Slaven

The appeal concerned the sentencing of the appellant, who had pleaded guilty to five counts of trafficking in cannabis and one count of trafficking in a large commercial quantity of cannabis. The appellant was sentenced to seven years and six months imprisonment with a non-parole period of four years and six months. This was the same head sentence as his co-offenders, who had faced additional charges including cultivating controlled plants for sale and further offences of trafficking in a large commercial quantity of cannabis. The appeal was brought before the Court of Appeal of Western Australia.

The central legal issue before the court was whether the parity principle had been correctly applied in sentencing. Specifically, the court had to determine if there was a discernible difference in the personal circumstances of the appellant compared to his co-offenders that justified the imposition of a longer non-parole period for the appellant. The appellant argued that the disparity in the non-parole periods was unwarranted, given the similar head sentences.

The Court of Appeal allowed the appeal, finding that the sentencing judge had erred in imposing a longer non-parole period on the appellant. The court reasoned that while the appellant's role in the drug syndicate was significant, involving the transfer of substantial sums of money and some on-selling, the co-offenders had a more extensive involvement, including the cultivation and preparation of the drugs for sale. The court concluded that the difference in their respective roles did not warrant the disparity in the non-parole periods. Consequently, the appellant was re-sentenced to a head sentence of seven years and six months imprisonment with a non-parole period of three years and nine months, aligning his non-parole period with that of his co-offenders.