Introduction
GPS tagging is used in the criminal justice system to monitor some people after release from prison, or as part of other court or supervision arrangements.
A GPS tag can record location data and help authorities check whether licence conditions, curfews, exclusion zones, or other requirements are being followed.
For someone released on licence, electronic monitoring can have serious practical consequences. A suspected breach may lead to further investigation, stricter supervision, or recall to prison.
Understanding how GPS tagging works, when it is used and what legal obligations apply can be essential for individuals subject to these monitoring conditions.
What Is GPS Tagging?
GPS tagging is a form of electronic monitoring used within the criminal justice system.
A tag is usually fitted around the ankle and uses location technology to monitor a person’s movements.
Unlike older curfew tags, which mainly checked whether someone was at a particular address during set hours, GPS tags can provide location information over time.
This means they can monitor:
- Movement patterns
- Entry into restricted areas
- Compliance with licence conditions
- Potential links to criminal activity
The information may be reviewed by monitoring services, probation, or other authorities involved in supervision.
Government guidance on electronic monitoring can be found on gov.uk.
When Is GPS Tagging Used in the UK?
GPS tagging may be used in different parts of the criminal justice system.
Prison Release Licence Conditions
Many offenders released from prison must follow licence conditions. These conditions are designed to reduce risk and protect the public.
In certain cases, electronic monitoring may be added to help manage risk, support supervision, or check compliance with specific restrictions.
Serious Offence Monitoring
GPS tagging may be used where authorities consider that location monitoring is needed to manage risk after release.
This may include checking whether a person avoids certain areas, attends required appointments, or complies with restrictions linked to their licence.
Court-Ordered Electronic Monitoring
Electronic monitoring may also be used as part of bail, a community sentence, a suspended sentence requirement, or other court-imposed arrangements.
The exact form of monitoring will depend on the order made and the legal basis for it.
Relevant sentencing guidance can be found through the Sentencing Council.

How GPS Electronic Monitoring Works
A GPS tag records location data and sends information to a monitoring system.
The device records location data at regular intervals. This information is transmitted to monitoring systems that can analyse whether the individual has followed the conditions placed upon them.
Monitoring systems can identify:
- Movement patterns
- Entry into prohibited zones
- Potential breaches of restrictions
- Curfew compliance
If the monitoring system identifies a possible breach, the matter may be reviewed by the relevant authority.
A GPS tag should not be removed, damaged, or interfered with. Tampering with the device may be treated as a breach.
Legal Powers Behind GPS Tagging
Electronic monitoring can be imposed under different legal powers depending on the person’s status and the type of case.
These legal powers allow authorities to impose monitoring requirements in appropriate circumstances.
Licence Conditions and Rules for Tagged Offenders
People subject to GPS tagging must follow the rules attached to their licence, order, or monitoring requirement.
Common conditions may include:
- Remaining within certain geographic areas
- Avoiding specific locations
- Observing curfews
- Not tampering with the device
- Attending supervision appointments
The monitoring system records location data to ensure compliance with these requirements.
If a condition is unclear, legal advice should be taken before any issue becomes a breach allegation.
What Happens If an Offender Breaches GPS Tagging Rules?
Breaching GPS tagging conditions can lead to serious consequences.
Authorities may investigate suspected breaches, particularly where monitoring data suggests that the individual has entered restricted areas or failed to follow licence conditions.
Possible consequences may include:
- Further investigation by authorities
- Recall to prison if licence conditions are breached
- Additional court proceedings
- Stricter supervision measures
Not every alert will automatically prove a breach. There may be issues with timing, location data, device problems, misunderstanding of conditions, or other circumstances that need to be examined.
How Long GPS Tagging Can Last
The length of GPS tagging depends on the legal basis for the monitoring and the conditions imposed.
Factors that may influence the duration include:
- The nature of the offence
- The individual’s risk profile
- Licence conditions imposed upon release
- Court-ordered restrictions
Monitoring periods can vary considerably depending on the case.
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Why Legal Advice May Be Important
Electronic monitoring conditions can be complex and strict.
If an individual is accused of breaching tagging rules or faces further legal action as a result of monitoring data, obtaining legal advice from an experienced criminal defence solicitor can be essential.
A solicitor can review the allegation, consider the evidence and advise on the best way to respond.
Early legal advice may help individuals understand their rights and options when dealing with allegations linked to electronic monitoring.
Speak to a Criminal Defence Solicitor
Electronic monitoring and licence conditions can be difficult to manage, especially after release from prison.
If you require legal advice about electronic monitoring, licence conditions or allegations linked to GPS tagging, seeking guidance from an experienced criminal defence solicitor is essential.
Our Serious and Complex Crimes solicitors can review the circumstances, assess the evidence and provide clear advice on your options.
5 Key Takeaways
- GPS tagging is a form of electronic monitoring that can record location data.
- It may be used after prison release, on licence, or as part of other criminal justice measures.
- GPS monitoring can check exclusion zones, curfew compliance, attendance and movement patterns.
- A suspected breach can lead to enforcement action, court proceedings, or recall to prison.
- Legal advice is important if a breach is alleged or the conditions are unclear.
Frequently Asked Questions
GPS tagging is a form of electronic monitoring that tracks an offender’s location using satellite technology.
Monitoring is typically carried out through systems used by authorities responsible for offender supervision.
No. Tampering with or removing the device without authorisation is usually considered a breach of monitoring conditions.
Authorities may investigate suspected breaches and take further legal action depending on the circumstances.
GPS tags can provide detailed location data, but any alleged breach should still be assessed carefully in context.
Yes. GPS tagging may be used as part of licence conditions after release from prison in appropriate cases.
GPS monitoring can record location data over time, allowing authorities to review movement and compliance with conditions.
Yes. A solicitor can advise on licence conditions, alleged breaches, recall risk and disputes about monitoring evidence.
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