Where harsh conditions of imprisonment (such as 23-hour lockdown) are the product of the offender's own behaviour, the origin of that burden moderates the mitigatory effect that can be given to it. The psychological frailty of an offender that is called in aid of mitigation may itself reinforce the conclusion that the offender has a serious propensity to act violently, carrying with it an increased need to give weight to protection of the community. For an institutionalised offender with an extensive history of violent offending, the principle of totality must be informed by the objective gravity of the offending, deterrence, denunciation, poor prospects of rehabilitation, and the need to protect the community.
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