Factual and Procedural Background
This appeal arises from a decision of Judge Cranston dated 13 October 2009 concerning the Secretary of State for the Home Department's powers of detention under paragraph 2(3) of Schedule 3 to the Immigration Act 1971. The case involves the detention of the Appellant, a Bangladeshi national who arrived in the United Kingdom as a child and was granted indefinite leave to remain. The Appellant has a long-standing history of mental illness, diagnosed as paranoid schizophrenia, and a significant criminal record with multiple offences committed under various aliases, culminating in a robbery conviction and a four-year prison sentence.
Following the completion of his prison sentence in May 2008, the Appellant was transferred to immigration detention pending deportation pursuant to a deportation order issued in February 2008. The Secretary of State’s policy, as set out in the "Enforcement Instructions and Guidance", generally prohibits detention of mentally ill individuals except in very exceptional circumstances. Judge Cranston found that the Secretary of State failed to properly engage with this policy in detaining the Appellant, although he did not find the detention unlawful overall. The Appellant sought a declaration of unlawful detention, damages for breach of Article 5 ECHR rights, false imprisonment, and other remedies, but was unsuccessful in these claims. Permission to appeal was granted.
Legal Issues Presented
- Whether the Secretary of State’s failure to have regard to his own published policy concerning the detention of mentally ill persons renders the detention unlawful.
- Whether a causation or materiality analysis is required to determine if a breach of policy results in unlawful detention.
- The proper role of the court in assessing the lawfulness of detention under paragraph 2(3) of Schedule 3 to the Immigration Act 1971, including the application of the Hardial Singh principles.
- Whether the court should determine the lawfulness of detention by assessing if detention would have been inevitable even if the policy had been properly applied.
Arguments of the Parties
Appellant's Arguments
- The failure by the Secretary of State to apply the published policy regarding the detention of mentally ill persons renders the detention unlawful as a matter of law and the decision to detain a nullity.
- The judge erred by imposing a further "causation" hurdle, requiring the Appellant to prove that detention would not have occurred if the policy had been applied.
- Even if a causation analysis is required, the judge incorrectly assumed the role of the primary decision maker and failed to properly assess whether detention would inevitably have resulted.
- The burden of proof was wrongly placed on the Appellant to demonstrate unlawfulness rather than on the Secretary of State to justify detention.
Respondent's Arguments
- A failure to apply a published policy does not ipso facto render detention unlawful; the lawfulness depends on compliance with established legal principles, specifically the Hardial Singh principles.
- The court’s role includes assessing all relevant factors and the policy’s application but is not confined to a causation or inevitability test.
- The Appellant would have inevitably been detained even if the policy had been applied, given his criminal history and risk factors.
- The judge was entitled to reach his own conclusion on lawfulness based on the evidence and applicable legal standards.
Table of Precedents Cited
| Precedent |
Rule or Principle Cited For |
Application by the Court |
| Re Hardial Singh [1984] 1 WLR 704 |
Principles governing the reasonableness and lawfulness of immigration detention pending deportation. |
Serves as the foundational test for the lawfulness of detention; the court must be satisfied that detention complies with these principles. |
| R(I) v Secretary of State for the Home Department [2001] EWCA Civ 888 |
Restatement of Hardial Singh principles and factors relevant to reasonable detention length. |
Considered in assessing detention duration and risks such as absconding. |
| R(A) v Secretary of State for the Home Department [2007] EWCA Civ 804 |
Significance of absconding risk in detention decisions. |
Affirmed the importance of absconding and reoffending risk in detention assessments. |
| R(D); R(K) v Secretary of State for the Home Department [2006] EWHC 980 (Admin) |
Failure to comply with procedural requirements (e.g. medical examination) does not automatically render detention unlawful. |
Used to support that breach of policy alone does not invalidate detention without causative effect. |
| HK (Turkey) v Secretary of State for the Home Department [2007] EWCA Civ 1357 |
Affirmed the principle from R(D); R(K) regarding procedural breaches and detention lawfulness. |
Reinforced that failure to comply with policy or rules is not dispositive of illegality without causation. |
| Abdi v Secretary of State for the Home Department [2008] EWHC 3166 (Admin) |
Failure to comply with detention rules and policy does not automatically render detention unlawful. |
Considered in relation to the requirement for causation in unlawful detention claims. |
| R(WL) and others v Secretary of State for the Home Department [2010] EWCA Civ 111 |
Requirement of causation/materiality to establish unlawful detention due to policy breach. |
Held that unlawful policy alone does not render detention unlawful unless it materially caused detention. |
| R(SK (Zimbabwe)) v Secretary of State for the Home Department [2008] EWCA Civ 1204 |
Compliance with detention rules/manual is not a condition precedent to lawful detention; Hardial Singh principles govern lawfulness. |
Emphasised that failure to comply with policy/rules is relevant but not determinative of detention legality. |
| R(MC (Algeria)) v Secretary of State for the Home Department [2010] EWCA Civ 347 |
Application of Hardial Singh principles and causation analysis in mental health detention cases. |
Confirmed that failure to apply policy does not necessarily render detention unlawful if detention would have been inevitable. |
| R (A (Somalia)) v Secretary of State for the Home Department [2007] EWCA Civ 804 |
Role of court as primary decision maker in assessing lawfulness and reasonableness of detention. |
Confirmed that courts must determine the lawfulness of detention, not merely review Secretary of State’s decision. |
| Roberts v Chief Constable of the Cheshire Constabulary [1999] 1 WLR 662 |
Condition precedent for lawful detention under PACE; distinguished from immigration detention. |
Distinguished as inapplicable to immigration detention powers lacking similar statutory conditions. |
| Christie v Leachinsky [1947] AC 573 |
Detention without lawful authority is unlawful. |
Distinguished from cases where statutory powers exist but may be exercised unlawfully. |
| R (Saadi) v Secretary of State for the Home Department [2002] 1 WLR 3131 |
Incorrect reasons for detention do not necessarily affect lawfulness of detention. |
Supported that procedural errors alone do not invalidate detention absent substantive illegality. |
Court's Reasoning and Analysis
The court undertook a detailed examination of the statutory framework, the Secretary of State’s published policy in the Enforcement Instructions and Guidance, and relevant case law. It emphasized that the power to detain under paragraph 2(3) of Schedule 3 to the Immigration Act 1971 is subject to the Hardial Singh principles, which require detention to be reasonably necessary and for a reasonable period pending removal.
The court acknowledged that the Secretary of State’s policy restricts detention of mentally ill individuals to very exceptional circumstances. However, this policy operates within a broader context where the risk of absconding and reoffending, especially for serious offenders, weighs heavily in favor of detention.
Judge Cranston found that the Secretary of State failed to properly consider the policy concerning mentally ill detainees in this case. Nonetheless, the court agreed with Cranston J’s conclusion that the Appellant’s detention was not unlawful because the Appellant had a significant history of offending, a high risk of absconding, and had engaged in disruptive behavior to frustrate removal. These factors outweighed the presumption of release due to mental illness.
The court further analyzed the requirement of a causation or materiality test, which asks whether the failure to apply policy materially caused the detention. The court found binding authority from the Court of Appeal in R(WL) and others and R(SK) that failure to comply with policy or procedural rules does not ipso facto render detention unlawful unless it can be shown that the breach caused the detention.
The court rejected the Appellant’s argument that the failure to apply the policy automatically invalidated the detention. It held that the court acts as the primary decision maker in determining the lawfulness of detention, applying the Hardial Singh principles and considering all relevant factors, including policy. The court concluded that, even if the policy had been properly applied, the Appellant would inevitably have been detained given the serious risks posed.
The court also addressed the burden of proof, confirming that the Secretary of State bears the burden of proving lawfulness under the Hardial Singh principles, and that any apparent misstatement by Cranston J did not affect the outcome.
Overall, the court found no error in the judge’s balancing of factors, his interpretation of the policy, or his conclusion that detention was lawful.
Holding and Implications
The appeal is dismissed.
The court upheld the lawfulness of the Appellant's detention under paragraph 2(3) of Schedule 3 to the Immigration Act 1971, applying the Hardial Singh principles and considering the Secretary of State’s policy on mentally ill detainees. The failure to apply the policy did not render the detention unlawful because the detention would have been justified regardless, given the Appellant’s criminal history, risk of absconding, and conduct.
This decision confirms that while public authorities must have regard to their published policies, a breach of policy alone does not automatically invalidate detention. Instead, a causation or materiality analysis is required, with the Hardial Singh principles remaining the primary test for lawfulness. The court also affirmed its role as primary decision maker in assessing detention lawfulness, rather than merely reviewing the Secretary of State’s decisions.
No new precedent was set beyond reaffirming existing principles and clarifying their application in the context of mentally ill detainees with serious offending histories.