Surely improvement of existing prisons comes before extending the estate?

 http://aberavonneathlibdems.blogspot.com/2022/02/prison-expansions-cost-of-conservatives.html refers.

No doubt this prison expansion will help the beleaguered construction industry, traditionally supporters of the Conservative party, though the expansion will be achieved through refurbishment of, or addition of wings to, existing prisons.

However, there is no mention in the government's media release of the recruitment of additional prison staff, already under strength, or the improvement of their conditions. Clearly no thought has been given to the rehabilitation of prisoners, of reducing the risk of reoffending.