lionel:I think we are now all in agreement! Thanks Stuart and Ruby... very interesting points about people 'rarely violent because of a mental illness'. I rather imagine some practitioners might disagree with that..
There is a difference between saying people are violent because of mental disorder and saying that a number of people with mental disorders might be violent.
I agree that some mentally disordered people are violent but this is also true of the general population. It's not mental disorder that causes hostility - it's other social issues that are also prevalent in other sections of society.
Many people who wear glasses are violent but that doesn't mean that glasses wearers are necessarily violent - nor does it mean that wearing glasses is a reason to avoid legal processes.
I believe in recovery from mental disorders, including 'serious and enduring' disorders like schizophrenia. That is achieved essentially by preparing and helping people to exist and function within mainstream society. A necessary part of this is to do with conforming to the laws of society. We do mentally ill people few favours by maintaining their illness with 'special status' around criminal justice. That's not mainstream society and it not only stigmatizes them it also mitigates against self control and resopnsibility.
If a person is behaving violently because of mental disorder (it does happen sometimes, after all) then there's a legal mechanism to deal with that too via the Mental Health Act but the process still tends to begin in court, doesn't it? Decisions about prosecution and public interest should be made by the CPS, not by other individuals whatever their motivation or professional bias.