Contracted services

Electronic monitoring caseload

Electronic monitoring was introduced in 1999 to support the police, courts, prisons and wider justice system in England and Wales.

It is a way of remotely monitoring and recording information on an individual’s whereabouts or movements, using an electronic tag which is normally fitted to a subject’s ankle. The tag transmits this information, via a base unit installed in a subject’s residence, to a monitoring centre where it is processed and recorded in case management systems. Staff in the monitoring centre review this information to see whether an individual is complying with the conditions of their curfew or other electronically monitored requirement. Where a subject is not complying, the electronic monitoring provider either acts on this information themselves or provides it to the relevant authority to take the necessary enforcement action.

The figures for 31 March 2019 onwards include details of those on location monitoring tags, which were introduced in November 2018.

Visit Electronic Monitoring Statistics for data sources and more details.


Electronic monitoring caseload

Total caseload.

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Period Electronic monitoring caseload
31 March 2015 14,018
31 March 2016 12,625
31 March 2017 11,486
31 March 2018 11,205
31 March 2019 10,771
31 March 2020 10,422
31 March 2021 13,996
31 March 2022 15,195

31 March 2022 15,195

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Bail

As a condition of court bail.

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Period Bail
31 March 2015 4,272
31 March 2016 3,654
31 March 2017 2,857
31 March 2018 2,759
31 March 2019 2,543
31 March 2020 3,234
31 March 2021 5,939
31 March 2022 5,585

31 March 2022 5,585

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Court sentence

As a requirement of a court sentence, including community orders and suspended sentences.

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Period Court sentence
31 March 2015 6,841
31 March 2016 6,210
31 March 2017 5,820
31 March 2018 4,817
31 March 2019 4,861
31 March 2020 3,949
31 March 2021 5,114
31 March 2022 4,125

31 March 2022 4,125

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Post release

As a licence condition following release from custody, including Home Detention Curfew.

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Period Post release
31 March 2015 2,271
31 March 2016 2,269
31 March 2017 2,488
31 March 2018 3,327
31 March 2019 3,096
31 March 2020 2,991
31 March 2021 2,592
31 March 2022 3,141

31 March 2022 3,141

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Immigration

As a condition of immigration bail, managed by the Home Office.

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Period Immigration
31 March 2015 614
31 March 2016 477
31 March 2017 297
31 March 2018 263
31 March 2019 233
31 March 2020 194
31 March 2021 270
31 March 2022 1,438

31 March 2022 1,438

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Specials

Used to intensively monitor a small number of subjects including: some of the highest risk offenders managed under Multi-Agency Public Protection Arrangements (MAPPA); those granted bail by the Special Immigration Appeals Commission (SIAC); and those made subject to Terrorism Prevention and Investigation Measures (TPIMs). In these cases, monitoring may be by way of a Global Positioning System (GPS) tag rather than a radio frequency (RF) tag.

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Period Specials
31 March 2015 20
31 March 2016 15
31 March 2017 24
31 March 2018 39
31 March 2019 38
31 March 2020 54
31 March 2021 48
31 March 2022 47

31 March 2022 47

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.


Alcohol monitoring

Alcohol monitoring was introduced in October 2020 and went live throughout England and Wales on 31 March 2021 to support the new community sentencing option, the Alcohol Abstinence and Monitoring Requirement (AAMR). An AAMR may only be used when sentencing for alcohol-related criminal behaviour and it imposes a total ban on drinking alcohol for up to 120 days. Compliance with the ban is monitored electronically using an alcohol tag which continuously monitors for the presence of alcohol.

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Period Alcohol monitoring
31 March 2018
31 March 2019
31 March 2020
31 March 2021 36
31 March 2022 898

31 March 2022 898

Data source Electronic Monitoring Statistics Publication

Published: 20 October 2022.