Annie, not sure if you are familiar at all with the Dutch system of TBS? It stands for "terbeschikking stellen" and roughly translates as “being placed at the disposal of the court/government”, and it's for mentally ill offenders, they are detained in special clinics (tbs klinieken), not prisons or young offenders institutes, and MH treatment is at the centre of the whole program. From the little I know about it, it sounds similar to what you would like to see in the UK.
With particular reference to this bit you said
“they would not be isolated from society because true rehab (whether that involves living outside of supervised residences or not) cannot happen in a vacuum- in order to feel a responsibility to society, one needs to feel ones part in it.”
I am not sure exactly how it works in Holland. Not all patients in a TBS clinic are allowed outside the walls of the clinic. I think they have to show they are safe enough first and judged (by psychiatrists) to pose no risk to the public, at which time they are allowed short outings with 100% staff supervision. Think along the lines of, trip to the supermarket or library, accompanied by one or more members of staff. However as they are judged to be getting better they are (eventually) allowed unsupervised leave. This be can be for an afternoon, a day or a weekend. Preparing the offenders/patients for their reintegration back into society.
On paper I like this system. I do agree that to rehabilitate offenders we can’t exclude them completely from society. So I agree there has to be some system to either aid them to reintegrate gradually and safely, or not to totally exclude them in the first place. However, where this all falls down for me is the amount of TBS patients (offenders? I am not really sure if they are classed as offenders or patients) who commit crimes, or leg it, when they are granted unsupervised leave.
I am just quoting from Wikipedia here, and the page is in Dutch so pointless linking, but it gives a long list of cases where TBS patients have committed crimes when released on leave, crimes including violent rape, rape of children, and more than a handful of murders, all in recent years. I know this is a big issue in Holland and one of the main reasons why a lot of Dutch people don’t support the system.
I don’t really know why I am writing this, apart from, when I was first made aware of the system in the Netherlands it struck me as so much more humane and pragmatic and better than the UK’s system. But as the years go on and I see it’s many failings, I am not as much a supporter of it as I once was. These TBS clinics can be, and are, built in the middle of residential housing areas, and of course I understand why that is, as the patients ARE a part of our society. But do I want to be out walking my dog when the one "appeared to be doing so well on his medication and was responding so well to his treatment" patient/offender gets afternoon leave and sees a red mist and flip his lid?
I don't want to do the "not on my doorstep" thing. I want to be more for a system that is more about rehabilitation than about punishment. But I also want to be able to walk my dog without coming across an offender whose psychiatrist was a bit too optimistic when granting unsupervised leave.
I guess I want to be more liberal thinking and support a care/treatment based approach for mentally ill detainees, but I also want to be safe. I am just not sure if the two go hand in hand.
That Guardian article made very interesting reading by the way. How can two countries with such similar cultures treat similar child murderers so differently? Rhetorical question, obviously.