TL;DR: New Home Office guidance sets out how post detention age claims are managed once an individual detained under immigration powers is released after disputing their recorded age. The guidance builds on Detention Services Order 02/2019 and clarifies care, referral and safeguarding responsibilities.
Introduction
The management of post detention age claims has become a defined area of Home Office policy, following the publication of updated guidance on managing age dispute cases in the detention estate. The document, published on 2 September 2026, expands on the framework first set out in Detention Services Order 02/2019 and addresses a long-standing operational gap: what happens to an individual once they are released from immigration detention while their claimed age remains disputed or newly accepted as that of a child.
Age disputes arise when an individual subject to immigration control states that they are a minor, but Home Office records or an initial assessment suggest otherwise. Where such disputes are unresolved at the point of detention, or where new evidence emerges during detention, the question of care and management after release becomes critical. The updated guidance is aimed at ensuring that post detention age claims are handled consistently across the detention estate, with clear lines of responsibility between the Home Office, detention custody staff, local authorities and children’s services.
What Are Post Detention Age Claims?
Post detention age claims refer to situations where an individual’s claimed age — specifically an assertion that they are under 18 — is raised, reassessed, or remains disputed at the point they leave immigration detention. According to the updated guidance, these claims trigger specific safeguarding and case management obligations, distinct from the standard removal or release process applied to adults. The guidance clarifies how such claims should be recorded, escalated and followed up once detention ends, ensuring continuity of care rather than a gap in responsibility between detention staff and community services.
Background: Detention Services Order 02/2019
The Original Framework
Detention Services Order 02/2019 was the primary instrument governing age dispute cases within the detention estate. It set out the process by which detention staff should identify individuals who claim to be children, refer cases for further assessment, and apply the benefit of the doubt where evidence was inconclusive. The order established that anyone whose age was in genuine doubt should not, as a general rule, be held in adult detention facilities pending resolution.### Why an Update Was NeededOperational experience identified that the original order focused heavily on identification and initial handling within detention, but offered less clarity on the period immediately following release. The updated guidance addresses this by extending the framework to cover post detention age claims specifically, including handover arrangements to local authorities, notification duties, and the standard of care expected once an individual is no longer in the custody of detention centre staff.> The guidance states that age dispute cases require careful case management both during detention and immediately following release, to avoid gaps in safeguarding responsibility.## How Are Post Detention Age Claims Managed?### Referral and Notification DutiesUnder the updated guidance, where an age dispute is unresolved at the point of release, detention staff are required to notify the relevant local authority so that safeguarding arrangements can begin without delay. This includes flagging cases where an initial Merton-compliant age assessment has not yet taken place, or where new evidence has come to light shortly before release.### Continuity of CareThe guidance sets an expectation that care arrangements do not simply stop at the point of release. Detention Services Order 02/2019 principles — including the presumption of minority where doubt exists — are extended into the post detention period, meaning that individuals disputing their age should, according to the guidance, continue to be treated with appropriate caution regarding their vulnerability until a formal assessment is completed.### Documentation and Case RecordsThe updated document also addresses record-keeping. Case files relating to age disputes must, according to the guidance, be transferred accurately to receiving local authorities or relevant Home Office teams, ensuring that decisions taken during detention are not lost or duplicated once an individual moves into community-based care or continues through the asylum process.## Why Does This Change Matter?The significance of clarifying post detention age claims lies in closing a historic accountability gap. Previously, once an individual left the detention estate, responsibility for their welfare could become unclear, particularly where the age dispute had not been formally resolved. Charities, local authorities and legal representatives have long raised concerns about young people being treated as adults in the community despite an active, unresolved age claim originating in detention.By formalising the management of post detention age claims, the Home Office guidance seeks to ensure that the safeguards applied within detention — such as restricted use of adult detention facilities for disputed minors — are not undermined by a lack of clarity once release occurs. This matters for maintaining consistency between detention policy and wider safeguarding law applicable to children in the UK.## Implications for Affected IndividualsFor individuals who have raised an age dispute while in immigration detention, the updated guidance is intended to provide greater clarity on what happens after release. Affected individuals should, according to the published guidance, receive continued consideration of their claimed age by receiving local authorities, rather than facing an abrupt reversion to adult processing once detention ends. Legal representatives and support organisations working with affected individuals may find the guidance useful in holding relevant authorities to the stated standards of referral and care. The guidance does not itself resolve individual age disputes; formal determination remains a matter for a Merton-compliant age assessment carried out by the appropriate local authority or, where relevant, through immigration tribunal proceedings.## Frequently Asked Questions**Q: What is Detention Services Order 02/2019?**A: Detention Services Order 02/2019 is the Home Office instrument setting out how age dispute cases should be identified and managed within the immigration detention estate, including the principle that individuals whose age is genuinely in doubt should not generally be held in adult detention facilities.**Q: What happens to a post detention age claim after release?**A: According to the updated guidance, detention staff must notify the relevant local authority of any unresolved age dispute at the point of release, so that safeguarding and further assessment can continue without a gap in responsibility.**Q: Who decides someone’s age in an immigration case?**A: A formal determination of age is typically made through a Merton-compliant age assessment conducted by a local authority, rather than by Home Office detention staff, who apply an initial view based on available evidence.**Q: Does the updated guidance change the presumption of minority?**A: The guidance does not remove the existing presumption of minority applied where genuine doubt exists about an individual’s age; it extends the careful handling expected during detention into the post detention period.**Q: Where can the full guidance be found?**A: The guidance, titled ‘Managing age dispute cases in the detention estate’, is published on GOV.UK alongside related Detention Services Orders covering the immigration detention estate.## Key Takeaways- Updated Home Office guidance on post detention age claims was published on 2 September 2026, building on Detention Services Order 02/2019.- The guidance addresses the period immediately following release from immigration detention where an age dispute remains unresolved.- Detention staff are expected to notify local authorities of unresolved age claims at the point of release.- The presumption of minority applied during detention is intended to continue into the post detention period pending formal assessment.- Formal age determination still rests with local authorities through Merton-compliant age assessments, not with detention staff.## ConclusionThe publication of updated guidance on post detention age claims reflects continued Home Office attention to safeguarding gaps within the immigration detention system. By extending the principles of Detention Services Order 02/2019 beyond the point of release, the guidance aims to ensure that individuals disputing their age receive consistent treatment as they move from detention into community-based care or further immigration processes. The practical effect of the guidance will depend on implementation by detention staff and receiving local authorities across the detention estate.