Where parole is revoked solely because of the index offences, a sentencing judge has a discretion to backdate the sentence and is not required to commence it from the date of sentencing. The weight given to specific deterrence and protection of the community is a matter for the sentencing judge, and the circumstances in which an appellate court will intervene on questions of weight are narrowly confined. Prior violent offending that occurred in significantly different circumstances (here, manslaughter involving substantial impairment and self-defence) does not necessarily elevate specific deterrence for subsequent offending.
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