R (on the application of O) v Secretary of State for the Home Department [2016] UKSC 19

A mentally ill Nigerian woman challenged the lawfulness of her immigration detention pending deportation. The Supreme Court held that, although the Home Secretary unlawfully failed to apply detention policy properly, a lawful application would not have secured earlier release, warranting only nominal damages.

Facts

The appellant, O, a Nigerian national, entered the UK illegally in November 2003. In July 2008, she was sentenced to 12 months’ imprisonment for child cruelty and recommended for deportation. On completion of her sentence on 8 August 2008, the Home Secretary detained her at Yarl’s Wood Immigration Removal Centre. Her detention continued until 6 July 2011, when she was released on bail, having been detained for almost three years.

O suffered from serious mental ill-health, including suicide attempts, self-harm, hallucinations, and unpredictable mood swings. Various clinicians provided differing diagnoses. Most significantly, on 10 February 2011, Dr Agnew-Davies diagnosed severe, complex and chronic post-traumatic stress disorder (PTSD), recommending treatment at a specialist trauma-focussed clinic and release from detention.

The present proceedings (O’s fourth claim for judicial review) challenged the lawfulness of her detention between March and July 2011, seeking a declaration of unlawfulness and damages for false imprisonment. Lang J refused permission and the Court of Appeal dismissed her appeal.

Issues

The Supreme Court had to consider:

• The proper interpretation and application of the Home Secretary’s policy in Chapter 55.10 of the Enforcement Instructions and Guidance regarding detention of the mentally ill, in particular the meaning of “satisfactorily managed within detention”.
• The effect of deficiencies in the Home Secretary’s monthly detention reviews on the lawfulness of detention.
• Whether the Court of Appeal’s decision in R (Francis) v Secretary of State for the Home Department [2014] EWCA Civ 718 was correctly decided, particularly the distinction it drew between detention under paragraph 2(1) (“shall”) and paragraph 2(2) (“may”) of Schedule 3 to the Immigration Act 1971.

Arguments

O, supported by Bail for Immigration Detainees and Medical Justice, argued that the Home Secretary had unlawfully failed to apply her policy by inadequately addressing Dr Agnew-Davies’ report in the detention reviews. She contended Francis was wrongly decided and that detention under paragraph 2(1) could be rendered unlawful by misapplication of policy in the same way as detention under paragraph 2(2). She advocated a more intense judicial review of the Home Secretary’s application of policy given the fundamental nature of liberty.

The Home Secretary accepted there were defects in the reviews but contended that Francis was correctly decided, that detention under paragraph 2(1) was authorised by statute itself, and that unlawful application of policy did not render such detention unlawful.

Judgment

Application of Policy

Lord Wilson (with whom Lady Hale, Lord Reed, Lord Hughes and Lord Toulson agreed) held that the reviews of O’s detention between March and July 2011 were defective: they failed to refer to the PTSD diagnosis, wrongly identified Dr Ratnayake’s earlier diagnosis as the most recent, failed to address Dr Agnew-Davies’ recommendation for specialist treatment, and failed to consider whether O could be “satisfactorily managed” at Yarl’s Wood. The Home Secretary thus unlawfully failed to apply her policy under paragraph 55.10.

Meaning of “Satisfactory Management”

The court interpreted “satisfactory management” as a flexible concept catching numerous factors. Lord Wilson respectfully disagreed with an aside in R (Das) [2014] EWCA Civ 45, holding that the availability of community treatment likely to improve a detainee’s condition was a relevant factor, not merely treatment preventing deterioration. The standard of care should generally be equivalent to that available in the community.

Causation

However, the court held that a lawful application of policy would not have secured O’s release any earlier than 6 July 2011. Numerous inquiries would have been required, the risks of absconding and reoffending would have remained relevant, and even on the assumption that release should have been directed, the practical arrangements could not have been in place sooner.

The Francis Case Overruled

Lord Wilson held that Francis was wrongly decided in relation to detention under paragraph 2(1). The reasons included: any claim to detain must be clearly justified by statutory language; the duty to review applies equally under both paragraphs; a sentencing judge’s recommendation should not have such drastic legal consequences; section 36(2) of the UK Borders Act 2007 refers to a “power” under paragraph 2(3); and there was no principled basis for treating breach of policy differently from breach of Hardial Singh principles. The correct analysis, following Sir Stephen Sedley’s concurring judgment in Francis, is that the mandate to detain under paragraph 2(1) and the parenthetical words of paragraph 2(3) is subject to two conditions: (1) prospect of deportation within a reasonable time; and (2) the Home Secretary will consider in accordance with policy whether to direct release.

Disposal

Applying the Lumba principle, the likely outcome of allowing the claim to proceed would be a declaration of unlawful detention and nominal damages of £1. As O had already been released, the claim could bring no practical benefit, and her contentions had been vindicated in the judgment itself. The appeal was dismissed.

Implications

The decision clarifies several important points in immigration detention law:

• The Home Secretary’s policy on detention of the mentally ill requires genuine engagement with medical evidence in detention reviews. Generic recitations or failure to address up-to-date diagnoses will amount to unlawful failure to apply policy.
• “Satisfactory management” is interpreted flexibly with regard to context and purpose, not subjected to fine analysis. The standard of care in detention should generally be equivalent to that available in the community, although the additional stresses of detention pending deportation are relevant.
• Most significantly, the court overruled the majority decision in Francis, establishing that detention under paragraph 2(1) of Schedule 3 to the 1971 Act is subject to the same public law constraints as detention under paragraph 2(2). Unlawful application of policy renders detention unlawful regardless of which sub-paragraph authorises it.
• The Lumba principle applies: false imprisonment is committed by unlawful exercise of the power to detain, even where lawful exercise would certainly have produced the same outcome, though damages may be nominal.
• The court did not resolve the dispute about whether review of the Home Secretary’s application of policy is on rationality grounds or by intense judicial scrutiny, as this case turned on a procedural failure to engage with policy at all.

The decision is important for detainees suffering mental illness, immigration practitioners, and the Home Office, requiring rigorous engagement with medical evidence and proper procedural application of policy. It also strengthens accountability for executive detention across all statutory bases.

Verdict: Appeal dismissed. The Supreme Court upheld the refusal of permission for judicial review to proceed, on the basis that, although the Home Secretary had unlawfully failed to apply her policy under paragraph 55.10 of the Enforcement Instructions and Guidance during O’s detention between March and July 2011, the likely outcome would have been only a declaration of unlawful detention and nominal damages of £1, and O had already been released.

Source: R (on the application of O) v Secretary of State for the Home Department [2016] UKSC 19