33 I agree but wish to add some observations concerning the significance which the sentencing judge attributed to community protection. One contention implicit in counsel's submissions on behalf of the applicant was that, inasmuch as the sentencing judge had formulated the sentence imposed by reference to the need for community protection, his Honour had engaged in a process of preventative detention as opposed to the imposition of just punishment. I reject that contention. Certainly, the idea of community protection looks forward to some extent to the time when a prisoner will be released. But, in sentencing an offender, the weight to be given to community protection, and thus the length of sentence required to achieve the objective, are primarily measured by reference to the nature and gravity of the offence and the circumstances in which it was committed. In very approximate terms, the graver the offence, and the more extreme the circumstances of its commission, the more likely it will be that greater weight will need to be given to community protection. Of course, it is a question of balance. Pushed too far, there will come a point at which such a process goes beyond the ambit of just punishment and into the realm of preventative detention. But, for the reasons given by my brother Ashley, it is plain that in this case the sentencing judge stopped well short of the mark.