Written questions by Pochin.

What the average sum of compensation paid per day is to prisoners who have been held in custody beyond their lawful release dates.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

What steps he is taking to improve the (a) accuracy and (b) oversight of prison release date calculations.

On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address issues including release in error and unlawful detention. This includes the establishment of an Urgent Warrant Query Unit supported by court experts so prisons can escalate queries to reduce the risk of release in error. We have also stood up a digital rapid response unit to reduce human error with cutting-edge technology. We will provide up to £10 million over the next 6 months to deliver AI and technology-based solutions to support frontline staff, helping to avoid mistakes and calculate sentence accurately. We are also simplifying release policy; one of the aims of the Sentencing Bill is to standardise how cases are treated.

Whether the investigation into releases in error led by Dame Lynne Owens has reported any interim findings.

Dame Lynne Owens will have completed her independent investigation and be reporting to the Deputy Prime Minister on all her findings by the end of February. We will continue to approach the issue of releases in error with an emphasis on transparency.

What assessment he has made of the potential impact of staff shortages in offender management units on errors in calculating prisoners release dates.

Releases in error have been increasing for several years and are another symptom of the prison system crisis inherited by this Government. The safety of the public is our absolute priority.While the overwhelming majority of offenders are released correctly, any release in error is treated with utmost seriousness and we are clamping down on those that do occur. On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address this issue. As soon as an error is identified, we immediately assess the individual’s risk and work closely with the police to ensure swift action. A joint protocol between HMPPS and NPCC is in place, to ensure effective and timely communication between partner agencies when an individual is released in error to rearrest them as quickly as possible.Totals for releases in error are published each July in the HMPPS Annual Digest, with the latest available via HMPPS Annual Digest, April 2024 to March 2025 - GOV.UK, which provides data up to March 2025. These include information on the principal offence group of those released.A further transparency ad hoc publication, available via Releases_in_Error_from_1_April_2025_to_31_October_2025.pdf, also covers the number of releases in error from 1 April 2025 to 31 October 2025. Further breakdowns of this data cannot be provided at this time because they would give an early indication of future Official Statistics.Offender Management Units play a vital role in our prisons, including processing prisoner releases. Prisons are encouraged to fill vacancies promptly, with the Department providing support on best practice in recruitment. We are also rolling out technology-based upgrades to assist frontline staff, helping to reduce human error.The Government is determined to fix the issue of mistaken releases and ensure the public is properly protected.

How many drug related incidents were recorded in prisons in each of the past five years, including instances of possession, supply and related violence.

We publish the number of drugs finds in prisons in England and Wales in the HMPPS Annual Digest. Please see table 6.1 in the Finds tables and the Finds in Prison – Find Incidents data tool. The latest issue covers the 12-month period to March 2025, with a time series of drug finds starting from the 12-months to March 2007. The HMPPS Annual Digest reports the number of drug find incidents rather than the overall number of drug related incidents. Any increase in finds should not be interpreted as an increase in drug related activity. Higher figures may reflect more items being found, rather than more items being present in prisons. Data relating to drug related incidents more generally could only be provided at disproportionate cost and data specific to instances of possession, supply and related violence cannot be disclosed for security reasons.

How many prisoners were held in custody beyond their lawful release dates in the most recent year for which figures are available; and what the total compensation paid was.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

How many of the prisoners mistakenly released since April 2025 were convicted of violent, sexual or other serious offences; and what assessment he has made of the danger to the public posed by those still at large.

Releases in error have been increasing for several years and are another symptom of the prison system crisis inherited by this Government. The safety of the public is our absolute priority.While the overwhelming majority of offenders are released correctly, any release in error is treated with utmost seriousness and we are clamping down on those that do occur. On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address this issue. As soon as an error is identified, we immediately assess the individual’s risk and work closely with the police to ensure swift action. A joint protocol between HMPPS and NPCC is in place, to ensure effective and timely communication between partner agencies when an individual is released in error to rearrest them as quickly as possible.Totals for releases in error are published each July in the HMPPS Annual Digest, with the latest available via HMPPS Annual Digest, April 2024 to March 2025 - GOV.UK, which provides data up to March 2025. These include information on the principal offence group of those released.A further transparency ad hoc publication, available via Releases_in_Error_from_1_April_2025_to_31_October_2025.pdf, also covers the number of releases in error from 1 April 2025 to 31 October 2025. Further breakdowns of this data cannot be provided at this time because they would give an early indication of future Official Statistics.Offender Management Units play a vital role in our prisons, including processing prisoner releases. Prisons are encouraged to fill vacancies promptly, with the Department providing support on best practice in recruitment. We are also rolling out technology-based upgrades to assist frontline staff, helping to reduce human error.The Government is determined to fix the issue of mistaken releases and ensure the public is properly protected.

What assessment he has made of the impact of the scale of erroneous prisoner releases on public confidence and public safety.

Releases in error have been increasing for several years and are another symptom of the prison system crisis inherited by this Government. The safety of the public is our absolute priority.While the overwhelming majority of offenders are released correctly, any release in error is treated with utmost seriousness and we are clamping down on those that do occur. On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address this issue. As soon as an error is identified, we immediately assess the individual’s risk and work closely with the police to ensure swift action. A joint protocol between HMPPS and NPCC is in place, to ensure effective and timely communication between partner agencies when an individual is released in error to rearrest them as quickly as possible.Totals for releases in error are published each July in the HMPPS Annual Digest, with the latest available via HMPPS Annual Digest, April 2024 to March 2025 - GOV.UK, which provides data up to March 2025. These include information on the principal offence group of those released.A further transparency ad hoc publication, available via Releases_in_Error_from_1_April_2025_to_31_October_2025.pdf, also covers the number of releases in error from 1 April 2025 to 31 October 2025. Further breakdowns of this data cannot be provided at this time because they would give an early indication of future Official Statistics.Offender Management Units play a vital role in our prisons, including processing prisoner releases. Prisons are encouraged to fill vacancies promptly, with the Department providing support on best practice in recruitment. We are also rolling out technology-based upgrades to assist frontline staff, helping to reduce human error.The Government is determined to fix the issue of mistaken releases and ensure the public is properly protected.

What assessment he has made of the potential implications for his policies of trends in the number of prisoners kept in custody beyond their lawful release dates over the past ten years.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

What proportion of prisoners tested positive for illegal drugs on arrival and during their time in custody in the latest period for which data is available.

We recognise that the availability and use of drugs in prisons is too high. Tackling this is a priority in order to reduce reoffending, and improve the safety of our prisons. To drive down supply of drugs, we are investing over £40 million in physical security measures this financial year. This builds on the range of specialist equipment prisons already use to intercept contraband, including X-ray body scanners, airport-style Enhanced Gate Security, and baggage scanners.We must also address the demand for drugs which drives this illicit market. We work closely with health partners to identify prisoners with a drug problem and support them into treatment. To create the environment and incentives for prisoners to make the right choices, we have funded Incentivised Substance Free Living Units in 85 prisons. Prisoners on these units sign a behaviour compact, agree to be regularly drug tested and can access enhanced opportunities compared to a standard wing. Alongside this, we are working to increase access to mutual aid fellowships in prison, which can provide vital ongoing support for people in recovery.The information requested regarding the proportion of prisoners testing positive on arrival and during their time in custody can only be provided at disproportionate cost.

Whether he has received legal advice on the PATHWAYS trial.

The healthcare of children, like all patients, deserves evidence-based treatments where possible. That is why we are following expert, independent advice from the Cass Review to implement a programme of research to support the National Health Service to provide the best support to children and young people with gender incongruence. The programme includes the PATHWAYS trial, a carefully designed clinical trial to assess the relative benefits and harms of puberty-suppressing hormones as a treatment option for children and young people with gender incongruence. The Government Legal Department is the Government’s principal legal advisers. Its core purpose is to help the Government to govern well, within the rule of law. They regularly provide advice to the Department of Health and Social Care.

How many prisoners were held in custody beyond their lawful release dates in each of the past ten years; and what the total amount of compensation paid was in each year.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

What assessment he has made of the potential impact of changes to early release schemes on the accuracy of release date calculations.

On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address issues including release in error and unlawful detention. This includes the establishment of an Urgent Warrant Query Unit supported by court experts so prisons can escalate queries to reduce the risk of release in error. We have also stood up a digital rapid response unit to reduce human error with cutting-edge technology. We will provide up to £10 million over the next 6 months to deliver AI and technology-based solutions to support frontline staff, helping to avoid mistakes and calculate sentence accurately. We are also simplifying release policy; one of the aims of the Sentencing Bill is to standardise how cases are treated.

What estimate he has made of the number of prisoners who were held beyond their lawful release dates but did not submit claims for compensation.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

What steps he is taking to reduce the number of prisoners who are held in custody beyond their lawful release dates.

Release inaccuracy is yet another symptom of the prison system crisis inherited by this Government. While the overwhelming majority of offenders are released correctly, we are clamping down on those errors that do occur, and this includes unlawful detentions.On 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps which includes an independent inquiry which will report its recommendations to prevent further inaccuracies. The Government is determined to fix release inaccuracies and ensure the public is properly protected.The data requested comes from internal management information and is not centrally collected. It is not quality assured and does not meet the standard required for publication.

What assessment he has made of the potential implications for his policies of the findings of HM Chief Inspector of Prisons regarding release date errors at HMP Pentonville.

Releases in error have been increasing for several years and are another symptom of the prison system crisis inherited by this Government. The Government is determined to fix the issue of mistaken releases and ensure the public is properly protected and on 11 November, the Deputy Prime Minister announced a five-point action plan setting out initial steps to address the issue. Work is already underway to address the areas identified for improvement by the Inspectorate. This includes establishing a specialist headquarters team to provide guidance to prisons to mitigate the risk of early or late releases, which is actively supporting HMP Pentonville as part of the Urgent Notification response.

What steps he is taking to reduce the supply of illegal drugs into prisons, including through improved searching, staff screening and security technology.

Prisons in England and Wales have a range of specialist staff and equipment to tackle the smuggling of contraband into prisons, including drugs. This includes X-ray body scanners, airport-style Enhanced Gate Security, X-ray baggage scanners, detection dogs, and other specialist equipment. In addition, local security strategies allow for routine and random rub-down searches of prison officers and other staff upon entry to, or within, prisons. This year we are investing over £40 million in physical security measures across 34 prisons, including £10 million on anti-drone measures, such as window replacements, external window grilles and specialist netting across 15 priority prisons. All HMPPS prison staff are subject to rigorous pre-employment security vetting checks. These checks enable the organisation to assess whether candidates pose a risk to the safety and security of HMPPS information, assets, staff, and offenders, and whether they demonstrate the standards and core values expected of everyone working within HMPPS. While the vast majority of prison staff act with integrity, HMPPS recognises the risk of corruption and is committed to tackling it at all levels. HMPPS’s Counter Corruption Unit works proactively with prisons and police to deter and disrupt staff wrongdoing. Prison security must be dynamic and be able to respond to shifting risks as they manifest. We regularly review our security countermeasures capabilities and will not hesitate to adjust our approach as needed and use all the tools at our disposal.

What assessment he has made of the implications for his policies of recent trends in the availability and use of illegal drugs within the prison estate.

We recognise that the availability and use of drugs in prisons is too high. Tackling this is a priority in order to reduce reoffending, and improve the safety of our prisons. To drive down supply of drugs, we are investing over £40 million in physical security measures this financial year. This builds on the range of specialist equipment prisons already use to intercept contraband, including X-ray body scanners, airport-style Enhanced Gate Security, and baggage scanners.We must also address the demand for drugs which drives this illicit market. We work closely with health partners to identify prisoners with a drug problem and support them into treatment. To create the environment and incentives for prisoners to make the right choices, we have funded Incentivised Substance Free Living Units in 85 prisons. Prisoners on these units sign a behaviour compact, agree to be regularly drug tested and can access enhanced opportunities compared to a standard wing. Alongside this, we are working to increase access to mutual aid fellowships in prison, which can provide vital ongoing support for people in recovery.The information requested regarding the proportion of prisoners testing positive on arrival and during their time in custody can only be provided at disproportionate cost.

What steps he has taken to prevent mistaken releases of prisoners; and whether he plans to (a) allocate additional resource for and (b) implement systemic reforms to prisoner-release protocols.

Releases in error are never acceptable, and we are bearing down on those errors that do occur.Following the release in error of Hadush Kebatu from HMP Chelmsford, the Deputy Prime Minister took immediate steps to make the processes that take place when a prisoner is released more robust. This includes implementing a clear checklist for governors to determine that every step has been followed the evening before any release takes place. On 11 November, the Deputy Prime Minister announced a five-point action. This included additional resource allocated to the Urgent Warrant Query Unit set up to allow prisons to quickly escalate warrant-related queries and a multi-million pound investment in new technology to reduce human error. This is in addition to standing up a digital rapid response unit with up to 15 members of staff dedicated to exploring options to upgrade our digital systems. We have committed to the simplification of release policy to reduce the scope for errors through the implementation of the Sentencing Bill. We have also appointed Dame Lynne Owens to examine what is causing releases in error, identify systemic factors, assess whether current discharge protocols are robust, and make recommendations to prevent similar mistakes in future.

When he expects the investigation into releases in error led by Dame Lynne Owens to be (a) completed and (b) published.

Dame Lynne Owens will have completed her independent investigation and be reporting to the Deputy Prime Minister on all her findings by the end of February. We will continue to approach the issue of releases in error with an emphasis on transparency.