Electronic monitoring performance

Electronic Monitoring service performance of service level measures – national performance.

Note performance relates to the service delivery of radio frequency tags only. It does not include the delivery of the GPS service.

The testing of EMS March 2020 data was significantly affected by COVID-19. The access to the EMS systems to test the data due to the lockdown was not possible initially and afterwards very limited. It was agreed in April by members of the Contract Accountability Meeting (CAM) to accept EMS's provisional figures for March 2020.

Visit prisons and probation statistics for data sources and more details.


Equipment installation and subject induction - first attempt within specified timescales (EMS SL004A)

Equipment installation and subject induction - first attempt within specified timescales (EMS SL004A)
Year Equipment installation and subject induction - first attempt within specified timescales (EMS SL004A)
Jan-Mar 20 97.5%
Oct-Dec 19 95.2%
Jul-Sep 19 97.1%
Apr-Jun 19 98.0%
Jan-Mar 19 98.4%
Oct-Dec 18 94.9%
Jul-Sep 18 97.2%
Apr-Jun 18 98.7%
Jan-Mar 18 98.9%
Oct-Dec 17 97.2%

Jan 2020 to Mar 2020 97.5%


Equipment installation and subject induction - further attempt(s) within specified timescales (EMS SL004B)

Equipment installation and subject induction - further attempt(s) within specified timescales (EMS SL004B)
Year Equipment installation and subject induction - further attempt(s) within specified timescales (EMS SL004B)
Jan-Mar 20 89.1%
Oct-Dec 19 83.9%
Jul-Sep 19 89.9%
Apr-Jun 19 91.9%
Jan-Mar 19 90.5%
Oct-Dec 18 80.6%
Jul-Sep 18 84.3%
Apr-Jun 18 88.7%
Jan-Mar 18 91.8%
Oct-Dec 17 83.1%

Jan 2020 to Mar 2020 89.1%


Equipment re-installation - attempt within specified timescales (EMS SL004C)

Equipment re-installation - attempt within specified timescales (EMS SL004C)
Year Equipment re-installation - attempt within specified timescales (EMS SL004C)
Jan-Mar 20 97.5%
Oct-Dec 19 92.0%
Jul-Sep 19 96.2%
Apr-Jun 19 97.1%
Jan-Mar 19 97.5%
Oct-Dec 18 94.4%
Jul-Sep 18 91.4%
Apr-Jun 18 98.2%
Jan-Mar 18 98.4%
Oct-Dec 17 96.3%

Jan 2020 to Mar 2020 97.5%


Equipment removal - attempt within specified timescales (EMS SL005A)

Equipment removal - attempt within specified timescales (EMS SL005A)
Year Equipment removal - attempt within specified timescales (EMS SL005A)
Jan-Mar 20 98.3%
Oct-Dec 19 97.3%
Jul-Sep 19 98.4%
Apr-Jun 19 98.7%
Jan-Mar 19 98.3%
Oct-Dec 18 95.5%
Jul-Sep 18 97.6%
Apr-Jun 18 99.1%
Jan-Mar 18 99.5%
Oct-Dec 17 99.4%

Jan 2020 to Mar 2020 98.3%


Equipment removal (bail cases) - attempt within specified timescales (EMS SL005B)

Equipment removal (bail cases) - attempt within specified timescales (EMS SL005B)
Year Equipment removal (bail cases) - attempt within specified timescales (EMS SL005B)
Jan-Mar 20 97.0%
Oct-Dec 19 94.2%
Jul-Sep 19 97.8%
Apr-Jun 19 98.5%
Jan-Mar 19 97.4%
Oct-Dec 18 93.7%
Jul-Sep 18 95.8%
Apr-Jun 18 97.9%
Jan-Mar 18 99.0%
Oct-Dec 17 98.4%

Jan 2020 to Mar 2020 97.0%


Equipment check following tamper violation - attempt within specified timescales (EMS SL005C)

Equipment check following tamper violation - attempt within specified timescales (EMS SL005C)
Year Equipment check following tamper violation - attempt within specified timescales (EMS SL005C)
Jan-Mar 20 88.8%
Oct-Dec 19 85.7%
Jul-Sep 19 89.9%
Apr-Jun 19 90.3%
Jan-Mar 19 91.2%
Oct-Dec 18 84.0%
Jul-Sep 18 84.7%
Apr-Jun 18 90.7%
Jan-Mar 18 91.0%
Oct-Dec 17 86.9%

Jan 2020 to Mar 2020 88.8%


Request for information required to commence orders - within specified timescales (EMS SL007B)

Request for information required to commence orders - within specified timescales (EMS SL007B)
Year Request for information required to commence orders - within specified timescales (EMS SL007B)
Jan-Mar 20 90.5%
Oct-Dec 19 81.7%
Jul-Sep 19 91.0%
Apr-Jun 19 86.5%
Jan-Mar 19 88.0%
Oct-Dec 18 85.6%
Jul-Sep 18 86.1%
Apr-Jun 18 89.4%
Jan-Mar 18 85.1%
Oct-Dec 17 87.8%

Jan 2020 to Mar 2020 90.5%


Call to curfew location following possible violation - within specified timescales (EMS SL008)

Call to curfew location following possible violation - within specified timescales (EMS SL008)
Year Call to curfew location following possible violation - within specified timescales (EMS SL008)
Jan-Mar 20 97.8%
Oct-Dec 19 97.6%
Jul-Sep 19 97.8%
Apr-Jun 19 97.4%
Jan-Mar 19 97.9%
Oct-Dec 18 97.5%
Jul-Sep 18 96.7%
Apr-Jun 18 97.0%
Jan-Mar 18 99.0%
Oct-Dec 17 99.2%

Jan 2020 to Mar 2020 97.8%