High Court Ruling Challenges UK’s Controversial ‘One In, One Out’ Immigration Policy

Sarah Mitchell, Senior Political Editor
5 Min Read
⏱️ 4 min read

In a landmark decision, the High Court has ordered the UK Home Office to return an alleged victim of trafficking, who was forcibly removed to France under the contentious “one in, one out” immigration strategy. This ruling, the first of its kind, could pave the way for other individuals similarly affected by this policy to return to the UK, raising critical questions about the treatment of asylum seekers and the legality of governmental procedures.

The ruling came from Mr Justice Sheldon, who quashed a Home Office policy that denied asylum seekers the right to have their trafficking claims reconsidered following an initial rejection. “I have quashed it so that it is as if it never happened,” the judge stated, underscoring the importance of ensuring that victims of trafficking have their claims properly assessed.

The “one in, one out” policy, designed to manage immigration by forcibly removing certain individuals arriving via small boats, exchanges these individuals for a similar number of asylum seekers from northern France. While the government claims that small boat crossings have decreased by over 40% compared to last year, the recent tragic loss of four lives during such crossings highlights the ongoing risks involved in this perilous journey.

Victims of a Flawed System

Asylum seekers returned to France now retain the right to have their trafficking claims re-evaluated. However, the practical implementation of this right remains uncertain. Many individuals who were sent back to France under the policy have gone underground, facing threats from smugglers or fear of being deported to their countries of origin or other EU states where they had previously registered.

The individual at the centre of this ruling, a Sudanese asylum seeker who was forcibly returned on 27 November 2025, has been identified as having reasonable grounds for being a victim of trafficking. This case is particularly significant as he is one of five people who contested the Home Secretary’s policy, which has now been deemed unlawful.

Broader Implications for Asylum Seekers

The High Court’s decision not only affects the man ordered to be returned but also opens the door for at least one other asylum seeker involved in the legal proceedings. This individual’s trafficking case will be reconsidered in France, and there is potential for his return to the UK, contingent upon the outcome of that re-evaluation.

Legal representatives have hailed the ruling as a major victory for vulnerable individuals. Emily Soothill from Deighton Pierce Glynn remarked, “Our client is a vulnerable victim of trafficking and torture who has suffered significantly as a result of the Home Office’s unlawful decision-making.” She expressed hope that this judgment would set a precedent for others who have been unlawfully removed under the treaty with France.

Elizabeth Cole, a solicitor at Duncan Lewis, echoed these sentiments, noting that the court’s decision raises serious questions about the legality of previous removals under the UK-France treaty. “We hope that this will allow a broader cohort of cases who have been removed to France unlawfully under the treaty to obtain justice and potentially return to the UK,” she stated.

Home Office Response and Future Actions

In light of the ruling, Home Office sources have indicated they are carefully reviewing the judgment and exploring potential avenues for appeal. This response suggests that the government is keen to maintain its stance on immigration control, despite the mounting legal challenges to its policies.

Why it Matters

This High Court ruling serves as a critical reminder of the need for humane treatment of asylum seekers and the importance of upholding the rule of law in immigration matters. The decision not only impacts the individuals directly involved but also sets a significant precedent for the treatment of trafficking victims within the UK’s complex immigration framework. As the government grapples with the implications of this ruling, the ongoing discourse surrounding immigration policy will undoubtedly continue to evolve, highlighting the delicate balance between national security and human rights.

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Sarah Mitchell is one of Britain's most respected political journalists, with 18 years of experience covering Westminster. As Senior Political Editor, she leads The Update Desk's political coverage and has interviewed every Prime Minister since Gordon Brown. She began her career at The Times and is a regular commentator on BBC political programming.
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