Sorry I missed the context MM. Do you work in prisons or have done time?
What are open prisons like in reality?
Open prisons are meant for the lowest risk men / women.
Literally no physical barriers to contain them in, you would have inevitably the drink drivers, tax frauds etc. type of prisoners in them with the occasional long term prisoner being "tested" prior to release.
Unfortunately the population pressures has seen most suitable prisoners get released on "tag" before they ever get there nowadays and the open population contains prisoners who would never have got within a hundred miles of them, not so long ago.
Open prisons do offer good opportunities to test prisoners I.e. if they can adhere to the conditions and also to prepare them for reintegration back in to society and a normal life.
I remember one Sunday night in the early 90s where, following an incident, men were sat in the association room at 10pm and as the news at q0 was about to come on one old boy asked me if Reginald Bosanquet was still presenting it as he hadn't seen it for 20yrs. The days of men never seeing tv past 7.45pm.
I worked in an open prison for several years and probably the most rewarding part of my service was getting lads in to decent jobs, many of whom managed to keep them after release and hopefully change their lives.
Pilley will be Cat B. Due to the length of sentence and severity of his crime for a good few years yet.
Keeping his nose clean he'll inevitably progress through to Cat D, probably no earlier then 2028 at the very earliest.
Guess I've akready given the answer to the second part you asked. I worked for 32yrs in prisons until retiring not too long ago.