Additional information on the safe, decent and secure running of the prison service.
Visit prisons and probation statistics for data sources and more details.
Prison level performance is monitored and measured using the Prison Performance Tool (PPT). The PPT uses a data-driven assessment of performance in each prison to derive overall prison performance ratings. As in previous years, data-driven ratings were ratified and subject to in depth scrutiny at the moderation process which took place in June 2020.
In the PPT, overall performance in each prison is rated on a 1 to 4 scale. The ratings are 4: Performance is exceptional; 3: Performance is acceptable; 2: Performance is of concern and 1: Performance is of serious concern. More information is available here.
|Annual prison performance ratings||Count|
|2: Of concern||28|
|1: Of serious concern||7|
Percentage of prisoners held in crowded accommodation.
Apr 2019 to Mar 2020 22.5 %
A prisoner is released in error if they are wrongly discharged from a prison or court when they should have remained in custody, where the prisoner has not deliberately played a part in the error (i.e. the prisoner had no intent of escaping).
Examples include misplaced warrants for imprisonment or remand, recall notices not acted upon, sentence miscalculation or discharging the wrong person on escort.
|Year||Releases in error|
Apr 2019 to Mar 2020 50
Staff in post (prisons)
The chart shows Band 3-5 prison officer staff (full time equivalent) for public sector prisons at the end of each financial year.
For further context and commentary, please see the HMPPS Workforce Statistics Bulletin
|Year||Staff in post (prisons)|
March 2021 21,92631-Mar-2021
At 31 March 2021 there were 21,926 Band 3-5 FTE officers in post.
Staff sickness (prisons)
Sickness absence (average working days lost per FTE staff) for operational grade staff in public sector prisons.
|Year||Staff sickness (prisons)|
Apr 2020 to Mar 2021 8.131-Mar-2021
For the 12 months to 31 March 2021 there were an average of 8.1 working days lost to sickness for operational grade staff in public sector prisons.
Rate of Band 3 - 5 prison officer staff resignations per public sector prison establishment.
|Staff resignation rate||Count|
|Did not achieve target||3,400.0%|
The percentage of foreign national prisoners that were referred to the Home Office within 10 days of each relevant sentencing.
|Foreign national prisoner referrals||Count|
|Did not achieve target||2,600.0%|
A measure of prison spend against agreed annual budget.
|Public prisons operating within budget||Count|
The percentage of staff adequately trained to deal with incidents in prisons.
Young People prisons undertake minimising and managing physical restraint (MMPR) training. All other prisons undertake control and restraint (C&R) training.
|Control & restraint staff training (C&R)||Count|
|Did not achieve target||2,500.0%|
The average number of staff adequately trained to deal with more serious incidents in prisons.
|Did not achieve target||1,900.0%|
To help drive improvements in living conditions in prisons. Residential units, cells, communal areas including serveries, toilets and showers are observed.
The living conditions audit is carried out approximately annually. The data presented here shows the most recent assessment for each prison establishment.
The summary percentage is based on audits published internally by HMPPS. The annual prison performance ratings publication includes audits which had not been published when it was released and were therefore suppressed from the data tables. Including these suppressed scores, the overall percentage of prisons scoring a 3 or 4 is 80.7%
|Audit of living conditions||Count|
A government internal audit which reviews financial and performance data processes.
|Data integrity (governance and operational audit)||Count|
Whether any difference in survey results from white and BME prisoners is statistically significantly different (i.e. did not occur by chance).
The MQPL survey is undertaken as a part of a rolling three-year programme. The data presented here shows the most recent assessment for each prison establishment.
|Measuring the quality of prison life – BME simplified||Count|
|No significant difference||48|