Source · IMB Annual Report
High Down
Year: 2024
Published: 20 May 2025
Type: Prison · Cat C
Population: 1,205
Recommendations: 12
Key concerns
Positive findings
HMP High Down, a Category C prison, faces significant challenges with safety, regime, and healthcare, despite some positive developments. Key concerns include the treatment of acutely mentally unwell prisoners, high levels of illicit items, and extensive regime restrictions. Staffing shortages and persistent issues with accommodation and food quality continue to impact the humane treatment of prisoners, many of whom also face accessibility barriers.
Safety statistics
| Indicator | This year | Previous |
|---|---|---|
| Deaths in custody | 2 | — |
| Self-harm incidents | 661 | 651 |
| ACCT cases opened | 533 | 542 |
| Prisoner assaults | 202 | 247 |
| Assaults on staff | 91 | 98 |
| Use of force | 732 | 687 |
| Drug finds | 2,227 | 1,641 |
Positive findings
The Board welcomes the strong maintenance of family contact, the positive use of therapy dogs, and improved healthcare waiting times. The creation of a retired prisoners' day room and the restart of the Storybook Dads programme are also positive developments. Improvements in education attendance and the provision of work/education for PCoSO prisoners are noted, as is the good practice observed in the main kitchen and efforts to reduce long segregation placements.
Key concerns
Mental Health
Repeated
Acutely mentally unwell prisoners continue to be held in the CSRU for long periods of time, despite failing the medical algorithm, and average wait times for mental health transfers have increased.
Substance Misuse
Repeated
A huge increase in drone incursions has led to an overwhelming presence of illicit items within the establishment, with over 30% of random drug tests proving positive.
Regime/Time Out of Cell
Repeated
Many prisoners spend up to 15 hours locked in their cells due to evening association frequently being cancelled, and full-time workers do not always have time to access regime.
Estate/Conditions
Repeated
On arrival, prisoners often find that cells are not clean and are missing essential items, houseblock serveries are frequently left in an unhygienic state, and there is inconsistent monitoring of portion control for food.
Staffing
Repeated
The Offender Management Unit (OMU) remains understaffed, resulting in large caseloads, and prisoners are often unable to access offender behaviour courses until the last 12 months of their sentence.
Equality/Diversity
Repeated
There are a number of issues with accessibility, including broken lifts and a lack of access ramps for prisoners with mobility issues, and a rise in older prisoners has created additional social care and health concerns.
Safety
There continues to be a disproportionate number of self-harm incidents among IPP and recall prisoners, and concerns remain regarding cell bell response times and observation during Constant Watch.
Recommendations
| # | Recommendation | Addressee | Status |
|---|---|---|---|
| 1 |
The Government should improve outcomes for mentally unwell prisoners in detention, addressing the issue of them being held in the CSRU for long periods despite failing the medical algorithm.
Repeated
Response
I appreciate the Board’s ongoing concern about the use of the Care, Separation and Reintegration Unit (CSRU) for prisoners experiencing acute mental illness. While the number of individuals at HMP High Down who fail the medical algorithm remains low, as I previously stated, I agree that segregation is not an appropriate long-term setting for those requiring inpatient mental health treatment. The Government is taking steps to address this issue. The Mental Health Bill is currently going through Parliament and introduces a statutory 28-day time limit for transfers from prison to hospital under the Mental Health Act. This, alongside operational improvements being developed with NHS England (NHSE), the Department of Health and Social Care and other partners will help ensure timely access to specialist care. Oversight of the transfer process will also be strengthened through the recently established Mental Health and Justice Strategic Advisory Group. Locally, HMP High Down has made improvements to local practice. This includes implementing the NHSE/His Majesty’s Prison and Probation Service (HMPPS) Joint Care and Separation Unit (CSU) Standards Framework, which aims to improve the quality of care and management within CSU. The new model aims to deliver a multidisciplinary, person-centred and needs led approach responsive to the complex cases seen and managed in segregation. The prison has also provided additional training and supervision session for CSRU staff, put in place a process to escalate cases to the Prison Group Director to consider use of inpatient beds in nearby reception prisons for acutely unwell prisoners and is ensuring regular meetings with healthcare partners to ensure they are collectively supporting unwell prisoners. I welcome the Board’s observation that reintegration planning for individuals leaving the CSRU has continued to improve. Moves are now planned with prisoners and often include phased relocations to support better outcomes. |
Ministry of Justice | In progress |
| 2 |
The Government should address the physical needs of the ageing prison population, including social care provision, accessibility, purposeful activity for retired prisoners and end of life care.
Response
I acknowledge the complex challenges faced by an ageing population. The Government is working with partners to develop a strategy specifically for older prisoners, following the recommendations of the Independent Sentencing Review which will address these issues. I am aware that HMP High Down has undertaken two recent Health and Social Care Needs Assessments, prompting increased NHS staffing and a review of care delivery. Additional measures, including dedicated activity spaces and multidisciplinary care planning, support the delivery of decent and appropriate care to this growing cohort. The prison is also exploring funding options to enable further improvements to the physical environment for prisoners with mobility issues. |
Ministry of Justice | In progress |
| 3 |
The Government should better support probation staff within prisons to address the additional pressure on under-resourced OMUs from government initiatives.
Repeated
Response
I recognise the impact of capacity measures such as early release schemes on Offender Management Units (OMUs). Nationally, the Probation Service continues to invest in recruitment and training, exceeding its 2024/25 intake target and progressing a further expansion in 2025/26. At HMP High Down, the use of the Case Management Support model has enabled additional Prison Offender Managers to alleviate some of the pressures on probation staff. The numbers of Probation Support Officers and Case Administrators within resettlement have also been increased to further support OMUs. These measures alongside local initiatives to strengthen supervision, development and recruitment are helping to improve resilience and support. |
Ministry of Justice | In progress |
| 4 |
The Government should tackle the increase in drone activity as a means of ingress of illicit items into prisons.
Repeated
Response
Tackling the ingress of illicit items remains a challenge for much of the prison estate and HMP High Down continues to try to strengthen its response to this. It is actively participating in the National Drones Initiative, and a 400-metre restricted fly zone is now in place across all closed prisons in England and Wales. Local partnerships with law enforcement have led to several arrests and a reduction in contraband finds and Mandatory Drug Testing rates. This is supported by your comments on the positive impact of X-ray body scans. |
Ministry of Justice | In progress |
| 5 |
The Prison Service should ensure that prisoners with mobility issues have full access to services and regimes, given the lack of access ramps and working lifts.
Repeated
Response
Prisoners with Mobility Issues The Government recognises the importance of ensuring full access to services and regimes for prisoners with mobility challenges. At HMP High Down investment has been made to improve infrastructure, including over £34,000 spent on lift repairs. Most lifts are currently operational, apart from the HB5 lift which remains under repair and the condemned Reception/Admin lift. The establishment has planned the installation of an access ramp to HB1 yard and is awaiting final contractor quotations. A bid to convert an existing cell into a fully accessible unit has also been submitted. Locally, the Governor and her team are working closely with the facilities management contractor to maintain lift reliability and continue to make individualised cell allocations, use temporary ramps and deploy social care supporters to reduce barriers to daily life and regime participation. |
HMPPS | In progress |
| 6 |
The Prison Service should tackle ongoing issues of violence within prisons.
Response
Violence Reduction Programmes The Board’s concern regarding the absence of ‘Changing the Game’ in 2024 is noted. The Governor shares the view that this programme provides significant value and has explored alternative funding sources including through NHS and education budgets. Nationally, while there is no singular violence reduction programme, HMPPS is delivering a staff training module on gangs and harmful group behaviours and has introduced electric razors in priority prisons to mitigate weapon use. The Governor intends to commission new violence reduction initiatives focused on young adults, pending available funding through the Dynamic Purchasing System or education allocations. |
HMPPS | In progress |
| 7 |
The Prison Service should bring prisoner wages into line with other category C establishments.
Response
Prisoner Pay Levels Pay policy is governed by a national policy which sets out minimum pay rates but permits local discretion based on operational priorities. HMP High Down’s budget allocation was not adjusted when it transitioned from a Category B to a Category C prison. The Governor has implemented the 2024 uplift of £1 per prisoner per week and has agreed to overspend on prisoner pay using predicted underspend elsewhere. In October 2024, Governors received guidance encouraging innovation in pay schemes, including progression pay and bonuses, though the implementation of such schemes is at local discretion. The Governor continues to monitor pay equity in the context of available resources. |
HMPPS | Partial |
| 8 |
The Prison Service should enable those with long sentences to make progress with their sentence plans before the last 12 months of their sentence.
Response
Sentence Progression and Access to Offending Behaviour Programmes (OBPs) Access to OBPs is prioritised by proximity to release and risk level. While this may delay access for some longer-term prisoners, it reflects a needs-based model of delivery. The Psychology Services Group notes that effective rehabilitation also depends on education, employment, custodial behaviour and relationships within the prison. HMP High Down is currently supported by two OBP delivery teams and continues to monitor demand, considering the recent extension of Category D eligibility to those within five years of release. The Governor is committed to expanding OBP capacity as resources allow and welcomes future developments under the Building Choices Programme. |
HMPPS | Partial |
| 9 |
The Governor should improve communication with prisoners, particularly with regards to regime changes.
Response
I note you have raised some local issues of concern in your report which the Governor will continue to keep you updated on as work progress. |
Governor / Director | In progress |
| 10 |
The Governor should ensure that full-time workers get access to regime when they get back to the houseblocks after work.
Repeated
Response
I note you have raised some local issues of concern in your report which the Governor will continue to keep you updated on as work progress. |
Governor / Director | In progress |
| 11 |
The Governor should improve hygiene standards in houseblock serveries.
Repeated
Response
I note you have raised some local issues of concern in your report which the Governor will continue to keep you updated on as work progress. |
Governor / Director | In progress |
| 12 |
The Governor should ensure that property does not go missing when prisoners move cells within the prison.
Repeated
Response
I note you have raised some local issues of concern in your report which the Governor will continue to keep you updated on as work progress. |
Governor / Director | In progress |
Applications to the IMB
| Category | Current | Previous |
|---|---|---|
| Accommodation (including transfers) | 45 | 38 |
| Diversity and inclusion | 28 | 50 |
| Faith | 25 | 22 |
| Food | 36 | 37 |
| Healthcare | 159 | 218 |
| IMB complaints | 24 | 17 |
| Legal | 17 | 15 |
| Offender Management Unit (OMU) | 49 | 51 |
| Other | 33 | 48 |
| Property | 119 | 157 |
| Punishment | 5 | 7 |
| Respect | 64 | 96 |
| Segregation | 23 | 19 |
| Staff behaviour | 16 | 23 |
| Telephones | 9 | 12 |
| Uncategorised | 16 | 24 |
| Visits | 37 | 31 |
| Work/education | 38 | 39 |
Related inspections & investigations
31 Jul 2023
HMIP · Unannounced
Safety 2
· Respect 3
· Activity 1
· Release 2
8 Dec 2025
PFD
Oliver Mulangala · State Custody related deaths | Alcohol, drug and medication related deaths
Other reports for High Down
Report details
- Establishment
- High Down
- Type
- Prison · Cat C
- Report year
- 2024
- Published
- 20 May 2025
- Responsible body
- HMP High Down
- Recommendations
- 12
- MoJ rating (2024/25)
- 2 — Concern
Population
| Population | 1,205 |
| Operational capacity | 1,090 |
| CNA (designed for) | 998 121% |
| Time out of cell | 9.0h/day |
Service providers
Catering
Aramark
Education
Novus
Escort Contractor
GEOAmey
Facilities Management
Amey
Healthcare
Central and North West London NHS Trust (CNWL)
IMB Secretariat
Ministry of Justice
Prison Operator
HM Prison and Probation Service