What do you think of the theory that prisons should be set up to value prisoners, to make them feel valued and wanted as individuals and as members of society outside, so that when they come out, there's more of a chance that they feel like stakeholders in that very same society?
The problem is that this is too woolly and difficult to implement in concrete, practical terms, and also of limited relevance because most prisoners have no such pathology. Those that do have these 'social' or mental problems probably should not be sent to closed prisons, and instead belong in psychiatric hospitals or open prisons or halfway houses, or something similar.
I can only speak from my own experience, in addition to the reading I have done on the subject. Prisoners who are articulate and literate will often argue against prison. Much of convict penology, for instance, is based on the premise that institutionalised confinement is counter-productive and wrong in itself, but this is written by people who are able to see beyond prison and the carrot-and-stick moral game.
In most cases, prisoners are there because they are (or were) bad and only comprehend a carrot-and-stick system of controls. You have to show them a hard face, or they will perceive weakness and take advantage of you. If you tell them you want to make them feel valued, they won't break down and cry and thank you, they will just see you as a soft idiot.
The liberalised regime of the modern prison has failed because it has been formulated by well-meaning middle-class people who don't take account of this. The regime doesn't trouble the prisoner unduly, but of course he wants to be out, so he behaves and complies. He reoffends not because of prison, but because of 'rehabilitation', which is a system designed to 'treat' him and deter him and warn others about him, and has replaced the old system of simply punishing bad people who do bad things and then letting them go (G.K. Chesterton: "...beat him around with a stick, but let him go"). The result is a vicious cycle overseen by (mostly) well-meaning but deeply misguided people.
I have heard about this distinction some make that 'you are sent to prison as punishment, not as punishment'. I disagree. The regime itself should be punishing. My view is that prisons are for punishment and should be austere, stern and the sort of places that terrify people. Even the hardest of the hard should dread them.
But the actual experience of a prison should be a place that is ordered, safe and humane.
To that end, TV and radio should be banned from cells. The regime should be strict and run by the staff, not by prisoners. Daily activities should be contemplation, religious worship, education and work-relevant training. As much as I dislike Gordon Ramsay, I enjoyed his TV series about running a kitchen and restaurant business from a prison. That's a good idea. More of that sort of thing is needed, maybe on a smaller scale.
There should be more prisons, not less - but they should be much smaller and more local to communities, with a system of local courts also restored (along the lines of the old assizes). One idea that occurred to me is that prisoners could be given a choice of re-locating somewhere completely new towards the end of their sentence, if they wish, and should be assisted in this. A more localised prison system may help.
All of this may have given you the wrong impression about me, so I will add that in my view the explicit aim of the Prison Service should be decarceration - in other words, prison officers and governors should work to make themselves redundant. Their aim is to oversee the humane and ordered punishment, correction and reform of people who offend. Prisons will never close completely, but the number of places could gradually be reduced and buildings re-purposed as the need for imprisonment decreases. This of course also depends on wider policies in the areas of immigration, housing, industrial policy, criminal record disclosure and so on.
On criminal record disclosure, my view remains that once the sentence is served, the debt is paid and the record can in due time be deleted. In most cases, unless the prisoner continues to be dangerous or show signs that he will reoffend, there should be a meaningful blank slate principle that takes effect after a due period - in some cases, this should be after a formal hearing before a judge or senior probation officer, or both.
It's not perfect, but nothing ever will be.