If a person has a treatable mental illness, it should of course have an impact on their rehabilitation. The trouble I have with "punishment" in the corrections system goes double for the mentally ill-- what is the point of it? What benefit is punishing criminals, especially mentally ill criminals, supposed to provide for society?
Sometimes I think we're alone. Sometimes I think we're not. In either case, the thought is staggering. ~ R. Buckminster Fuller
The legal systems of every civilised nation has the defence of diminished responsibility incorporated, so the question is moot. If it may be proven that the person was not of sound mind, or in full control of his faculties at the time of the offence, diminished responsibility applies. Both the judgement and the penalty are modified accordingly.
I cant remember who said,you can judge the civilization of a nation by the way they treat their criminals.
"A nation can survive its fools, and even the ambitious. But it cannot survive treason from within. An enemy at the gates is less formidable, for he is known and carries his banner openly. But the traitor moves amongst those within the gate freely, his sly whispers rustling through all the alleys, heard in the very halls of government itself. For the traitor appears not a traitor; he speaks in accents familiar to his victims, and he wears their face and their arguments, he appeals to the baseness that lies deep in the hearts of all men. He rots the soul of a nation, he works secretly and unknown in the night to undermine the pillars of the city, he infects the body politic so that it can no longer resist. A murder is less to fear"
Cicero Marcus Tullius
I love the smell of face-palm in the morning!
"You ain't no Muslim bruv!"