Where no expert opinion connects an offender's psychiatric illness to the offending conduct, and the offence involved a high degree of organisation and premeditation, the psychiatric disorders will not bear on moral culpability. A diagnosis of narcissistic personality disorder may be treated as reflecting poorly on prospects of rehabilitation, consistent with the Channon principle that psychiatric abnormality may mark an offender as a more intractable subject for reform. For attempted murder involving domestic violence, premeditation, use of a firearm, and the presence of children, a sentence of 15 years' imprisonment is within the appropriate range of 13-17 years.
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