The relevance of an offender's mental illness to sentencing is not confined to reducing the weight given to general deterrence. Mental illness may also be relevant to moral culpability, personal deterrence, and rehabilitation. The correct approach requires the court to ask whether the interests of society permit or the interests of the offender require that the sentence be reduced from what would otherwise be appropriate, weighing the significance of the mental condition in the light of the particular facts and circumstances of the case.
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