Additional data

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 detail

2019-20

Annual prison performance ratings
Annual prison performance ratings Count
4: Exceptional 19
3: Acceptable 65
2: Of concern 28
1: Of serious concern 7

Percentage of prisoners held in crowded accommodation.

Crowding
Year Crowding
2019-20 22.5 %
2018-19 22.5 %
2017-18 24.2 %
2016-17 24.5 %
2015-16 24.5 %
2014-15 25.5 %
2013-14 24.1 %
2012-13 23.9 %
2011-12 25.1 %
2010-11 24.2 %
2009-10 24.6 %
2008-09 25.3 %
2007-08 25.3 %
2006-07 24.6 %
2005-06 24.0 %
2004-05 24.4 %
2003-04 24.9 %
2002-03 23.3 %
2001-02 19.3 %
2000-01 18.2 %
1999-00 20.1 %
1998-99 20.0 %

Apr 2019 to Mar 2020 22.5 %

Crowding detail


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.

Releases in error
Year Releases in error
2019-20 50
2018-19 64
2017-18 66
2016-17 72
2015-16 64
2014-15 49
2013-14 50
2012-13 44
2011-12 42
2010-11 63
2009-10 68
2008-09 63
2007-08 31
2006-07 52

Apr 2019 to Mar 2020 50

Releases in error detail


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

Staff in post (prisons)
Year Staff in post (prisons)
March 2021 21,926
March 2020 21,928
March 2019 22,630
March 2018 21,038
March 2017 18,403
March 2016 18,327
March 2015 18,222
March 2014 18,251
March 2013 21,506
March 2012 22,735
March 2011 24,369
March 2010 24,830

March 2021 21,926

31-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.

Staff sickness (prisons)
Year Staff sickness (prisons)
2020-21 8.1 days
2019-20 10.8 days
2018-19 9.9 days
2017-18 9.7 days
2016-17 10.8 days
2015-16 11.1 days
2014-15 12.1 days
2013-14 11.9 days
2012-13 11.2 days
2011-12 10.7 days
2010-11 10.5 days
2009-10 11.6 days

Apr 2020 to Mar 2021 8.1

31-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 detail

2019-20

Staff resignation rate
Staff resignation rate Count
Achieved target 7,100.0%
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 detail

2019-20

Foreign national prisoner referrals
Foreign national prisoner referrals Count
Achieved target 4,400.0%
Did not achieve target 2,600.0%

A measure of prison spend against agreed annual budget.

Public prisons operating within budget detail

2019-20

Public prisons operating within budget
Public prisons operating within budget Count
Within budget 6,700.0%
Over budget 3,700.0%

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) detail

2019-20

Control & restraint staff training (C&R)
Control & restraint staff training (C&R) Count
Achieved target 9,400.0%
Did not achieve target 2,500.0%

The average number of staff adequately trained to deal with more serious incidents in prisons.

Tornado commitment detail

2019-20

Tornado commitment
Tornado commitment Count
Achieved target 7,300.0%
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 detail

2019-20

Audit of living conditions
Audit of living conditions Count
Rating 4 10
Rating 3 30
Rating 2 9
Rating 1 1

A government internal audit which reviews financial and performance data processes.

Data integrity (governance and operational audit) detail

2019-20

Data integrity (governance and operational audit)
Data integrity (governance and operational audit) Count
Rating 4 48
Rating 3 21
Rating 2 14
Rating 1 1

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 detail

2019-20

Measuring the quality of prison life – BME simplified
Measuring the quality of prison life – BME simplified Count
No significant difference 48
Significant difference 43