Improve Rehabilitation and Offender Supervision
Liberal Democrat · what the evidence says
An independent, source-checked look at Liberal Democrat’s policy “Improve Rehabilitation and Offender Supervision” — what it would actually do across the things that affect your life. Every claim below quotes the source behind it. How this works.
Crime, justice & national security — Helps
moderate · moderate confidence
This policy targets the main drivers of reoffending — prison overcrowding, poor education, weak resettlement support — and the evidence shows each of these interventions can reduce reoffending rates. The main caveat is that delivery depends on sustained funding and recruitment in a system that has faced deep real-terms cuts for over a decade.
The evidence
- Policy aims to end prison overcrowding, recruit more prison officers, improve education/work in prisons, introduce through-the-gate mentorship, a National Resettlement Plan, and properly fund community supervision. — libdems.org.uk (manifesto) — “Breaking the cycle of reoffending by improving rehabilitation in prisons and on release, and strengthening the supervision of offenders in the community.”
- Prison overcrowding is widespread — over a fifth of prisoners were held in crowded conditions in 2022. — commonslibrary.parliament.uk (government) — “on an average day in 2022, 20.6% of prisoners in England and Wales were held in crowded conditions.”
- Overcrowding directly undermines rehabilitation by disrupting sentence progression and cutting access to education and purposeful activity. — publications.parliament.uk (government) — “overcrowding leads to arbitrary prisoner transfers, disrupted sentence progression, and reduced access to purposeful activity, education, and family contact.”
- Half of prisoners are not involved in prison education or work despite high levels of need. — committees.parliament.uk (government) — “50% of prisoners are not involved in prison education or work, despite high levels of need.”
- The overall proven reoffending rate stood at 29.6% for the April–June 2024 cohort, an increase from the previous year. — assets.publishing.service.gov.uk (government) — “the overall proven reoffending rate at 29.6% for the April to June 2024 offender cohort, an increase from the previous year.”
- Prisoners who participate in education are significantly less likely to reoffend — a 7.5 percentage point reduction within 12 months of release — and have improved employment prospects. — college.police.uk (media) — “prisoners who participate in education are significantly less likely to reoffend within 12 months of release (a 7.5 percentage point reduction) and have improved employment prospects.”
- Ex-prisoners engaged in education and skills training had a 13% lower risk of reoffending and a 13% higher chance of employment on release. — college.police.uk (media) — “Ex-prisoners who engaged in education and skills training had a 13% lower risk of reoffending and a 13% higher chance of obtaining employment upon release.”
- Through-the-gate mentoring can positively affect intermediate rehabilitation outcomes such as reduced substance misuse, improved accommodation, and employment. — pure.southwales.ac.uk (academic) — “"through the gate" mentoring can have a positive impact on intermediate rehabilitation outcomes such as reduced substance misuse, improved accommodation, and employment.”
- Evidence on through-the-gate mentoring's direct impact on reoffending rates is mixed; a pilot found a non-statistically-significant difference (54% vs 60% reoffending). — assets.publishing.service.gov.uk (government) — “A 2012 analysis of a Prince's Trust "through-the-gate" mentoring pilot found insufficient evidence to conclude a statistically significant impact on reoffending, though the reoffending rate for mentees was 54% compared t…”
- Real-terms per-person spending on prisons and probation was 11% lower in 2023–24 than in 2007–08, creating a constrained baseline for delivery. — ifs.org.uk (institutional) — “per-person spending on HM Prison and Probation Service was 11% lower in 2023-24 than in 2007-08.”
- Even with new prison places being built, the system may face a similar capacity crisis in coming years if sentencing reform is insufficient. — howardleague.org (media) — “even with these new places, the prison system could face a similar capacity crisis in a few years, suggesting the Sentencing Bill does not go far enough to create a safe and sustainable system.”
- Staffing shortages contribute to the inability of prisons to deliver rehabilitation effectively, and retaining experienced officers is a persistent challenge. — crimeandjustice.org.uk (media) — “the prison service faces considerable challenges in recruiting and retaining staff, with accounts of many experienced officers leaving.”
Biggest unknown: Whether sufficient funding and staffing can be secured to deliver the reforms at scale, given that per-person spending on prisons and probation remains well below 2007–08 levels.
Our reading: The policy targets the structural barriers to rehabilitation that evidence identifies as drivers of reoffending: overcrowding, inadequate education and work, poor resettlement support, and weak community supervision. Each intervention has a plausible, evidence-backed mechanism. Prison education is the best-evidenced element, with Ministry of Justice research showing a 7.5 percentage-point reduction in reoffending among participants and a 13% lower risk in a separate study. Through-the-gate mentoring has weaker direct evidence on reoffending (a pilot showed a directional but non-significant reduction) but positive evidence on intermediate outcomes like accommodation and employment. The baseline is poor: half of prisoners are not in education or work, overcrowding is documented at over 20%, and real-terms per-person spending on prisons and probation remains well below 2007–08 levels. The policy therefore addresses genuine, evidenced gaps. Absent the policy, reoffending rates — already rising to 29.6% — are likely to worsen given the Justice Committee's warning that current failures risk undermining the purpose of imprisonment entirely. The counterfactual additionality is plausible: the mechanisms (education, mentoring, supervision, staffing) are not self-delivering, and the policy commits specific instruments. The key constraint is delivery under a severely squeezed budget and a recruitment/retention crisis in the prison officer workforce. Even if the direction is clearly positive, the magnitude is moderated by the real risk that funding commitments fall short of what is needed to overcome a decade-plus of underinvestment. The Howard League's concern about ongoing capacity pressures further tempers confidence. On balance the evidence supports a genuine, moderate long-term improvement in O5, with confidence at moderate given the strong delivery risks.
Education & opportunity — Helps
minor · low confidence
This policy would improve education and skills opportunities for prisoners and young offenders, but the evidence shows prison education is currently in a poor state and delivery challenges are severe, so real-world gains are uncertain and likely modest. The biggest risk is that without resolving overcrowding and staffing first, new education commitments may not reach the people who need them.
The evidence
- Prison education participation is low — 50% of prisoners are not involved in prison education or work despite high levels of need. — committees.parliament.uk (government) — “50% of prisoners are not involved in prison education or work, despite high levels of need”
- Prison education is currently in a poor state due to long-term decline in quality and low participation. — publications.parliament.uk (government) — “prison education is in a "poor state" due to a long-term decline in quality and low participation”
- Only 9 out of 32 prison education institutions were rated good or outstanding, compared to 8 out of 10 for community further education providers. — publications.parliament.uk (government) — “Only 9 out of 32 institutions were rated good or outstanding, compared to 8 out of 10 for community further education providers”
- Prisoners who participate in education are significantly less likely to reoffend within 12 months of release — a 7.5 percentage point reduction — and have improved employment prospects. — college.police.uk (media) — “prisoners who participate in education are significantly less likely to reoffend within 12 months of release (a 7.5 percentage point reduction) and have improved employment prospects”
- Ex-prisoners who engaged in education and skills training had a 13% lower risk of reoffending and a 13% higher chance of obtaining employment upon release. — college.police.uk (media) — “Ex-prisoners who engaged in education and skills training had a 13% lower risk of reoffending and a 13% higher chance of obtaining employment upon release”
- Overcrowding disrupts education access — it leads to arbitrary prisoner transfers, disrupted sentence progression, and reduced access to purposeful activity and education. — publications.parliament.uk (government) — “overcrowding leads to arbitrary prisoner transfers, disrupted sentence progression, and reduced access to purposeful activity, education, and family contact”
- Many prisoners are locked up for 22 hours or more daily with limited access to rehabilitative activities. — committees.parliament.uk (government) — “Many prisoners are locked up for 22 hours or more daily, with limited access to fresh air, showers, or rehabilitative activities”
- The policy proposes Secure Schools as a new form of youth custody designed to prioritise education, health, and purposeful activity. — gov.uk (media) — “Secure schools are a new form of youth custody designed to align with international evidence for more therapeutic, smaller units that prioritize education, health, and purposeful activity”
- Current youth custody provision is inadequate for many vulnerable children's needs. — publications.parliament.uk (government) — “current youth custody provision is inadequate for many vulnerable children's needs”
- There is concern about a lack of clarity regarding the purpose of secure children's homes among staff, making it difficult to measure their effectiveness in rehabilitating vulnerable young people. — bournemouth.ac.uk (academic) — “a lack of clarity regarding the purpose of secure children's homes in government policy and among staff, making it difficult to measure their effectiveness in rehabilitating vulnerable young people”
- Per-person spending on HM Prison and Probation Service was 11% lower in 2023-24 than in 2007-08, constraining delivery capacity. — ifs.org.uk (institutional) — “per-person spending on HM Prison and Probation Service was 11% lower in 2023-24 than in 2007-08”
Biggest unknown: Whether prison overcrowding and staffing shortages can be resolved sufficiently to allow education programmes to actually operate at scale — without that, the policy's education commitments may remain aspirational.
Our reading: This policy has genuine relevance to O7 through two main channels: prison education/skills for adult offenders, and the replacement of YOIs with Secure Schools for young offenders. The education evidence is directionally positive — participation in prison education reduces reoffending by 7.5 percentage points and improves employment prospects — but the current baseline is dire: half of prisoners access no education or work, quality is poor, and overcrowding actively prevents access by locking prisoners in cells for 22+ hours daily. The policy commits to improving education and ending overcrowding, which if delivered would remove the structural barriers. However, the soft-verb test applies to several elements — 'improving' education without a committed budget or statutory duty is aspirational, and a decade of real-terms spending cuts (11% lower per-person spending) means delivery is genuinely constrained. The Secure Schools commitment is more concrete — Oasis Restore opened in 2024 — but concerns about purpose-clarity and staff culture in secure children's homes temper optimism. The 'through the gate' mentorship strand has suggestive but weak evidence of effect on employment outcomes. On balance, the policy points in the right direction for O7 and contains at least one delivered mechanism (Secure Schools), but most adult education gains depend on first resolving overcrowding and staffing — which are themselves contested and under-funded. The marginal, additional effect on education outcomes at population scale is therefore real but modest and long-term, with low confidence given delivery barriers.
Equal treatment & democratic rights — Little effect
minor · low confidence
This policy is primarily about reducing reoffending through rehabilitation, which sits squarely in O5. Its marginal relevance to O9 — via fairer treatment of women and young people in custody and curbing arbitrary prisoner transfers — is real but incidental to the policy's core mechanism. There is no committed instrument targeting anti-discrimination, voting rights, or due process protections in a way that would move O9 indicators at population scale.
The evidence
- Women in custody disproportionately experience abuse, trauma, mental ill-health, and are often primary carers — a recognised differential treatment concern within the justice system. — questions-statements.parliament.uk (government) — “Women in custody are more likely to have experienced domestic or sexual abuse, trauma, mental ill-health, and substance misuse, and are often primary carers.”
- Overcrowding causes arbitrary prisoner transfers, disrupted sentence progression, and reduced access to purposeful activity — conditions that undermine fair and consistent treatment. — publications.parliament.uk (government) — “overcrowding leads to arbitrary prisoner transfers, disrupted sentence progression, and reduced access to purposeful activity, education, and family contact.”
- The Women's Justice Board published recommendations including legal changes for pregnant women and remand, but is transitioning to an Advisory Group rather than a statutory body. — questions-statements.parliament.uk (government) — “While the WJB will transition to an Advisory Group, the commitment to improving outcomes for women remains a government priority.”
Biggest unknown: Whether the Women's Justice Board and Secure Schools reforms deliver meaningfully improved equal treatment for those groups, or remain aspirational structures without statutory teeth.
Our reading: O9 covers equal treatment, minority protections, due process, and democratic rights. This policy's primary thrust is rehabilitative — reducing reoffending and improving prison conditions — which belongs under O5. Its O9 relevance is limited to two peripheral mechanisms. First, the Women's Justice Board acknowledges that women in custody face disproportionate vulnerabilities, which is an equal-treatment concern; however, the WJB is transitioning to an Advisory Group rather than a body with statutory powers, limiting its capacity to deliver enforceable equal-treatment improvements. Second, ending arbitrary transfers caused by overcrowding has a due process dimension — consistent sentence management is an element of fair treatment — but the policy's instrument here is capacity expansion, not a due process guarantee. The Secure Schools reform similarly addresses the differential treatment of young offenders, but evidence on whether these deliver meaningfully better equal-treatment outcomes is thin and contested. None of the stated instruments — mentorship programmes, resettlement plans, community supervision funding — directly address anti-discrimination protections, voting rights, or democratic participation. The effect on O9 indicators is therefore real in principle but minor in scale and uncertain in delivery, falling short of the threshold for a confident 'improves' verdict at population scale.