Evidence of a serious assault on a prisoner in custody and consequential post-traumatic stress disorder is admissible on appeal as relevant to the true significance of facts existing at the time of sentence, and may warrant re-exercise of the sentencing discretion with reduced emphasis on specific and general deterrence. A sentencing judge's failure to give adequate weight to unchallenged expert psychological evidence of depression constitutes error. The particular psychological vulnerabilities of female prisoners are recognised as a relevant background factor, though sentencing must remain based on the facts peculiar to the individual case.
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