Recurring concern
Inadequate control of illicit substance use and supply in secure institutions
First reported 28 Oct 2015•Latest report 24 Mar 2026
What this concern includes
Includes failures of controls specifically dedicated to preventing, detecting, investigating or responding to illicit substance entry, supply, distribution or use in secure hospitals, prisons and comparable secure institutional settings, including searches, testing, intelligence, supply-reduction strategies, risk investigation, warnings and safeguarding or clinical response where directly tied to the illicit-substance concern.
Not included
- Excludes ordinary medication-security, prescribing, dispensing or administration failures where illicit substances are not the material concern.
- Excludes generic staffing, communication, training or governance deficiencies unless they directly impair control of illicit substance entry, supply, distribution or use in a secure institution.
- Excludes substance-use treatment or withdrawal-management failures where the issue is not control of illicit substances entering, circulating or being used in the secure institution.
- Excludes general violence, self-harm, overdose or prisoner-safety concerns without a specific illicit-substance control failure.
- Excludes community or public illicit-drug supply concerns without a secure-institution setting.
- Reports
- 23
- Individual concerns
- 30
- Date range
- 2015–2026
- Stated actions
- 61
Distinct published reports
A report can raise multiple concerns
First to latest report issue date
Described in published responses
Reports over time
Reports over time
Reports about this concern issued each year.
* 2026 is projected from reports observed to 7 Sep 2026.
Most frequent recipients
Most frequent recipients
Reports about this concern sent to each recipient.
Concerns and responses across reports
Only concerns grouped under this recurring concern are included. Select any concern, action or position to view the source wording.
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Concerns raised1
Availability of illicit substances in custody
This report raised 15 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.1
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Position
Healthcare services alone cannot mitigate all risks within custody.
Stated by Central and North West London NHS Foundation Trust
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Concerns raised1
Failure to prevent drugs from entering the prison
This report raised 8 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.5
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Action
Equip adult male closed prisons with X-ray body scanners to detect and deter internally concealed illicit items.
Stated by HM Prison and Probation Service -
Action
Provide trace detection equipment to public sector prisons to identify drugs on physical items.
Stated by HM Prison and Probation Service -
Action
Maintain dedicated search teams equipped with specialist tools to detect and retrieve illicit items, including mobile phones.
Stated by HM Prison and Probation Service
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Action
Operate a dedicated counter-corruption unit providing staff training, support and guidance while pursuing corruption cases.
Stated by HM Prison and Probation Service -
Action
Provide airport-style enhanced gate security at 54 priority establishments to screen staff and visitors.
Stated by HM Prison and Probation Service
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.1
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Position
Responsibility for concerns about HMPPS and HMP Pentonville rests with separate organisations, so no response is proposed.
Stated by Practice Plus Group
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Concerns raised3
Lack of frontline staff awareness of roles, responsibilities, response expectations and required paperwork for suspected illicit-substance influence
Failure to observe and monitor prisoners suspected to be under the influence of illicit substances
Failure to align policies and protocols for managing prisoners suspected to be under the influence of illicit substances
This report raised 2 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.7
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Action
Agree and implement a common local protocol, including a flowchart, defining healthcare and prison staff roles, responsibilities, escalation and management of suspected illicit-substance influence.
Stated by Northamptonshire Healthcare NHS Foundation Trust -
Action
Circulate the UTI protocol and amended UTI recording log to healthcare and prison staff.
Stated by Northamptonshire Healthcare NHS Foundation Trust -
Action
Implement a single agreed UTI protocol standardising responsibilities, observations, escalation routes and handover expectations.
Stated by HM Prison and Probation Service
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Action
Issue the updated UTI protocol to prison and healthcare staff through briefings, written notices, meeting updates and daily checks.
Stated by HM Prison and Probation Service -
Action
Provide staff guidance on recognising UTI signs, initiating the protocol, completing observations and undertaking follow-up checks.
Stated by HM Prison and Probation Service -
Action
Appoint a substance misuse lead to conduct daily assurance and visit suspected UTI cases to support consistent protocol adherence.
Stated by HM Prison and Probation Service -
Action
Assure documentation and observations, record improvement needs, and escalate issues concerning timescales or procedures to senior leaders.
Stated by HM Prison and Probation Service
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Concerns raised1
Continued influx of illicit drugs into HMP Long Lartin
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.5
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Action
Invest in physical security and anti-drone measures benefiting HMP Long Lartin.
Stated by HM Prison and Probation Service -
Action
Operate the Crime in Prisons Taskforce to improve referrals and prosecutions with police and prosecutors.
Stated by HM Prison and Probation Service -
Action
Fund Incentivised Substance Free Living Units, including at HMP Long Lartin.
Stated by HM Prison and Probation Service
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Action
Deploy body scanners, enhanced gate security, drug-trace equipment and specialist search teams to detect and disrupt contraband conveyance.
Stated by HM Prison and Probation Service -
Action
Expand the national Serious Organised Crime operational function to strengthen specialist support and law-enforcement partnerships.
Stated by HM Prison and Probation Service
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Concerns raised2
Failure to maintain the gate house at a security level that restricts entry of illicit materials
Failure to maintain prison-block windows at a security level that restricts entry of illicit materials
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.6
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Action
Plan expansion works for a new Gate House and refurbishment of the existing Gate House to accommodate Enhanced Gate Security.
Stated by Clyde & Co Claims LLP -
Action
Use specialist screening equipment routinely to screen staff, professional visitors and social visitors entering the prison.
Stated by Clyde & Co Claims LLP -
Action
Expand the Special Searching Team to increase the frequency and quality of staff and visitor searches.
Stated by Clyde & Co Claims LLP
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Action
Fund and deploy additional external dog patrols to reduce contraband throwovers and support searching.
Stated by Clyde & Co Claims LLP -
Action
Develop a business case seeking funding for staffing and additional dogs to support searching seven days a week during core hours.
Stated by Clyde & Co Claims LLP -
Action
Deliver the phased replacement of vulnerable prison windows to reduce contraband ingress.
Stated by Clyde & Co Claims LLP
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.3
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Position
A temporary gatehouse extension was not pursued because existing interim searching measures were considered a better use of finances, though less comprehensive.
Stated by Clyde & Co Claims LLP
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Position
HMPPS must approve and fund building-design changes, while G4S is contracted only to manage and maintain the existing facility.
Stated by Clyde & Co Claims LLP -
Position
Window replacement cannot be completed widescale or faster because approved suppliers, specialist contractors, prisoner relocation and security logistics constrain delivery.
Stated by Clyde & Co Claims LLP
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Concerns raised2
Use of drones to deliver drugs and other contraband into prison
Easy availability of new psychoactive substances in prison
This report raised 3 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.7
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Action
Invest over £40 million in physical security across 34 prisons, including anti-drone measures at more than 15 priority prisons.
Stated by HM Prison and Probation Service -
Action
Develop comprehensive guidance for responding to drone activity affecting prisons.
Stated by HM Prison and Probation Service -
Action
Deliver staff upskilling to improve responses to drone activity affecting prisons.
Stated by HM Prison and Probation Service
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Action
Conduct vulnerability assessments across the prison estate to understand drone risks and inform mitigation plans.
Stated by HM Prison and Probation Service -
Action
Operate X-ray body scanners in all adult male closed prisons to detect and deter internally concealed illicit items.
Stated by HM Prison and Probation Service -
Action
Provide trace-detection equipment to all public sector prisons to identify drugs on physical items.
Stated by HM Prison and Probation Service -
Action
Equip 54 priority establishments with enhanced gate security, including metal detectors and X-ray baggage scanners, to screen staff and visitors.
Stated by HM Prison and Probation Service
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Concerns raised1
Ongoing entry of novel psychoactive substances and other contraband into the prison
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.4
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Action
Invest in physical prison-security enhancements, including anti-drone measures, improved windows, specialist netting and external grilles.
Stated by HM Prison and Probation Service -
Action
Work with law-enforcement partners to tackle drone-related criminality.
Stated by HM Prison and Probation Service -
Action
Develop comprehensive staff guidance to improve operational responses to drone-related threats.
Stated by HM Prison and Probation Service
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Action
Conduct estate-wide vulnerability assessments to inform mitigation plans for drone-related threats.
Stated by HM Prison and Probation Service
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Concerns raised1
Continuing availability and use of psychoactive substances posing significant health risks to prisoners
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.7
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Action
Invest in windows, specialist netting, external grilles and other physical security enhancements to prevent drones delivering contraband.
Stated by HM Prison and Probation Service -
Action
Maintain 400-metre Restricted Fly Zones around all closed prisons and young offender institutions.
Stated by HM Prison and Probation Service -
Action
Conduct estate-wide vulnerability assessments to inform mitigation plans for drone and related security risks.
Stated by HM Prison and Probation Service
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Action
Work with health providers to identify substance-misuse needs, facilitate treatment access and promote recovery through structured incentives.
Stated by HM Prison and Probation Service -
Action
Operate Incentivised Substance Free Living Units in 85 prisons, using behavioural compacts and regular drug testing.
Stated by HM Prison and Probation Service -
Action
Enhance establishment intelligence-driven strategies to disrupt substance supply chains, particularly drone-enabled deliveries.
Stated by HM Prison and Probation Service -
Action
Strengthen attendance at purposeful activities through rigorous daily monitoring to mitigate boredom-related behaviours contributing to illicit drug use.
Stated by HM Prison and Probation Service
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Concerns raised1
Lack of effective NPS-specific drug policy
This report raised 13 other concerns. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.2
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Action
Provide synthetic-cannabinoid risk training through an eLearning package for prison staff.
Stated by HM Prison and Probation Service -
Action
Operate local drug-strategy governance, staffing, supply-restriction, harm-reduction and recovery measures at Lowdham Grange.
Stated by HM Prison and Probation Service
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.1
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Position
Each prison is responsible for understanding local psychoactive-substance risks and developing local strategies to manage them.
Stated by HM Prison and Probation Service
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Concerns raised1
Failure to adequately mitigate illicit substance use, entry and distribution within SAH
This report raised 1 other concern. They are not shown here because they do not form part of this recurring concern.
Responses linked to these concernsEach statement is shown once, even when linked to more than one concern.
Actions described in response An action is something a respondent says it has done, is doing, or plans to do in response to the concern raised.1
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Action
Conduct an unannounced comprehensive inspection covering safety, including illicit-drug supply and the concerns raised in the report.
Stated by Care Quality Commission
Respondent positions A position is what a respondent says about the concern when they do not describe a specific action.2
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Position
An urgent unannounced inspection was not considered necessary at that time because the provider needed time to implement actions from its investigation.
Stated by Care Quality Commission
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Position
The registered provider is primarily responsible for developing and implementing policies and processes that meet applicable safety duties and standards.
Stated by Care Quality Commission
Data last updated 7 September 2026