At £42k/year, a prison place costs about 10 times more than a community sentence of the same length, and comes with higher reoffending rates. Reducing the CELL COUNT, and making greater use of day release, would mean savings for the taxpayer and reduced crime rates.
 No very recent data has been made publicly available by the government, but the average cost of a community or suspended sentence order was £4,135 in 2011/12 Ministry of Justice, Probation Trust Unit Costs Financial Year 2011–12 (revised), 28 November 2012
 Many studies have proven this fact, see e.g. https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/399389/impact-of-short-custodial-sentences-on-reoffending.PDF
 For the value of day release, see the notes associated with our “Day Release” beer