Prison Cat C Key Concerns Identified Positive Findings

High Down

IMB Annual Report 2024 · Published 20 May 2025

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.
Population
1,205
Operational Capacity
1,090
CNA (Designed For)
998
121% occupancy
Avg Hours Out of Cell
9.0h/day
Deaths in Custody
2
Self-harm Incidents
661
prev: 651
ACCT Cases Opened
533
prev: 542
Prisoner Assaults
202
prev: 247
Assaults on Staff
91
prev: 98
Use of Force
732
prev: 687
Segregation (GOOD)
3
Drug Finds
2,227
prev: 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.
Board Commentary
Staffing
Staff cross-deployment due to late transfers impacts evening regime for other prisoners. The Offender Management Unit remains significantly understaffed, leading to heavy caseloads and additional pressure from early release schemes. The rise in older prisoners requiring bed watches further strains staffing levels. Key worker sessions are frequently cancelled due to officer redeployment, although there was an increase towards the end of the year.
Healthcare
The Board remains concerned about the increasing average wait times for prisoners approved for transfer to secure mental hospitals, and the unacceptable conditions in which acutely mentally unwell prisoners are held in the CSRU. Many prisoners reported issues accessing healthcare, and a significant number of appointments are missed due to unlocking/escort failures. The rise in older prisoners has created additional social care and health needs, including palliative care, raising concerns about humane end-of-life provision.
Regime & Daily Life
Frequent cancellations of evening association lead to most prisoners spending up to 15 hours locked in their cells. Full-time workers often do not get access to regime upon returning from work before lock-up. Poor communication regarding regime changes causes significant frustration among prisoners, with 61% describing it as very poor. Late arrival of transfer vans disrupts routines and leads to cross-deployment of staff, further impacting regime.
Applications to the IMB

Prisoners can apply to their IMB about any aspect of their treatment. This table shows application counts by category.

Category Current Previous Change
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
Recommendations (12)
Ministry of Justice: 4 HMPPS: 4 Governor / Director: 4 7 repeated
Recommendation 1 Repeated Prev. unaddressed
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.
Ministry of Justice Mental Health
Response
The Board remains concerned about this issue (see section 5.2).
Recommendation 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.
Ministry of Justice Healthcare
Recommendation 3 Repeated Prev. unaddressed
The Government should better support probation staff within prisons to address the additional pressure on under-resourced OMUs from government initiatives.
Ministry of Justice Staffing
Response
There has been some improvement in this area (see section 7.3).
Recommendation 4 Repeated Prev. unaddressed
The Government should tackle the increase in drone activity as a means of ingress of illicit items into prisons.
Ministry of Justice Substance Misuse
Response
The Board remains concerned about this issue (see section 4.5).
Recommendation 5 Repeated Prev. unaddressed
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.
HMPPS Equality
Response
The Board remains concerned about this issue (see section 5.1).
Recommendation 6
The Prison Service should tackle ongoing issues of violence within prisons.
HMPPS Safety
Recommendation 7
The Prison Service should bring prisoner wages into line with other category C establishments.
HMPPS Other
Recommendation 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.
HMPPS Resettlement
Recommendation 9
The Governor should improve communication with prisoners, particularly with regards to regime changes.
Governor / Director Regime
Recommendation 10 Repeated Prev. unaddressed
The Governor should ensure that full-time workers get access to regime when they get back to the houseblocks after work.
Governor / Director Regime
Response
The Board remains concerned about this issue (see section 6.5)
Recommendation 11 Repeated Prev. unaddressed
The Governor should improve hygiene standards in houseblock serveries.
Governor / Director Food
Response
The Board remains concerned about this issue (see section 5.1)
Recommendation 12 Repeated Prev. unaddressed
The Governor should ensure that property does not go missing when prisoners move cells within the prison.
Governor / Director Other
Response
The Board remains concerned about this issue (see section 5.8)
Other IMB Reports for High Down
2023 Published 11 Jul 2024 1,148 651
2022 Published 14 Jun 2023 1,090 721
2021 Published 17 Jun 2022 1,021 779
2020 Published 15 Jul 2021 930 577
HMIP Inspections

Recent inspections by HM Inspectorate of Prisons for this establishment.

31 Jul 2023 Unannounced
Safety: 2 Respect: 3 Activity: 1 Release: 2
PPO Fatal Incidents

Prisons and Probation Ombudsman fatal incident investigations for this establishment.

Daniel Brown
Natural causes · Report published
Mohammed Fethaullah
13 May 2025 · Natural causes · Report published
Mark Richards
17 Jan 2025 · Natural causes · Report published
Jason Kennedy
9 Nov 2022 · Other non-natural · Report published
Prevention of Future Deaths Reports

Coroner PFD reports issued to this establishment.

Oliver Mulangala
8 Dec 2025 · State Custody related deaths | Alcohol, drug and medication related deaths
Matthew Russell
27 Nov 2016 · State Custody related deaths; Suicide (from 2015)