A sentence of 10 years' imprisonment (from a starting point of 15 years before transitional provisions) is appropriate for a very serious attempted murder involving a degree of premeditation, a random attack on a defenceless victim, callous post-offence conduct, and virtually no mitigating factors, where the maximum penalty is life imprisonment. The totality principle does not require concurrency where the prior sentence relates to a serious offence and the aggregate term does not destroy any useful expectation of life upon release.
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