Factual and Procedural Background
This opinion concerns appeals by multiple persons detained under certificates issued by the Secretary of State for the Home Department pursuant to Section 21 of the Anti-Terrorism, Crime and Security Act 2001 ("the 2001 Act"). The appeals challenge the refusal of the Special Immigration Appeals Commission ("the Commission") to cancel these certificates. Two appellants had ceased detention by leaving the jurisdiction, leading to revocation of their certificates and fresh appeals from abroad, which the Commission held it had no jurisdiction to hear. The Commission issued a generic judgment addressing general points on the legality of the certificates and individual determinations for each appellant after a series of hearings over four months.
The appeals raise a jurisdictional issue and three general issues concerning the Commission's approach to evidence. The appellants seek remission for rehearing if any general issue is decided in their favour. The Secretary of State initially suggested the court might resolve individual cases but later accepted remission was necessary. Additional points concern disclosure procedures, a procedural issue in one appellant's case, and matters related to the Refugee Convention.
Legal Issues Presented
- Whether the Commission erred in applying an insufficient standard of scrutiny to the certification and detention decisions under Section 21 of the 2001 Act.
- Whether the Commission misunderstood the scope of the derogation under Article 15 of the European Convention on Human Rights (ECHR) and thus applied it too broadly to persons liable to certification.
- Whether evidence obtained by torture or other ill-treatment contrary to Article 3 of the ECHR should be excluded from consideration by the Commission and the Secretary of State in certification and appeal proceedings.
- Whether the Commission had jurisdiction to hear appeals against certificates that had been revoked following appellants leaving the jurisdiction.
- Additional procedural issues relating to disclosure of documents, investigation obligations, and the application of the Refugee Convention in specific appellant cases.
Arguments of the Parties
Appellants' Arguments
- The Commission applied too low a standard of scrutiny; a high and rigorous standard is required given the fundamental right to liberty and the risk of indefinite detention.
- The derogation under Article 15 ECHR is limited to threats posed by Al Qa'eda and associated networks; the Commission's broader interpretation improperly extends certification to persons outside this scope.
- Evidence obtained by torture or other breaches of Article 3 ECHR should be inadmissible before the Commission; reliance on such evidence violates common law, Article 6 ECHR rights to a fair trial, and international obligations under the United Nations Convention Against Torture (UNCAT).
- The Commission erred in holding it lacked jurisdiction to hear appeals from appellants whose certificates had been revoked after leaving the jurisdiction; the right of appeal should survive revocation.
- Procedural complaints include inadequate disclosure, failure to investigate alternative removal countries, and unfair late amendments to the Secretary of State's case.
Secretary of State's Arguments
- The standard of scrutiny applied by the Commission was appropriate and consistent with statutory language requiring reasonable belief and suspicion, not proof beyond reasonable doubt.
- The derogation and statutory provisions are to be read pragmatically and in light of the terrorist threat; the Commission's interpretation of "international terrorist group" as including loosely connected, overlapping networks linked to Al Qa'eda is correct.
- The Commission correctly held that evidence obtained by torture is not inadmissible per se; issues relating to such evidence go to weight, not admissibility, and the Secretary of State is entitled to rely on intelligence from various sources including foreign governments.
- The Commission correctly held it lacked jurisdiction to hear appeals against revoked certificates; statutory language contemplates appeal only against existing certifications.
- Procedural matters were appropriately handled; disclosure and investigation were conducted reasonably given the security context and practical difficulties.
Table of Precedents Cited
| Precedent |
Rule or Principle Cited For |
Application by the Court |
| O'Hara v Chief Constable of the Royal Ulster Constabulary [1997] AC 286 |
Definition and assessment of reasonable suspicion involving subjective and objective elements. |
Used to explain the nature of reasonable suspicion required under Section 21(1)(b) of the 2001 Act. |
| Secretary of State for the Home Department v Rehman [2003] 1 AC 153 |
Standard of proof and deference to executive judgment in national security deportation cases. |
Guided the court's understanding that evaluation and judgment, not proof beyond reasonable doubt, govern certification and appeals. |
| Murray v United Kingdom [1994] 19 EHRR 193 |
Level of deprivation of liberty influences the level of suspicion required under Article 5 ECHR. |
Cited by appellants to argue for a higher standard of suspicion and scrutiny. |
| M v Secretary of State for the Home Department [2004] EWCA Civ 324 |
Commission's obligation to make an objective judgment on reasonable grounds for belief or suspicion. |
Approved the Commission's approach to assessing evidence and the standard required under Section 25. |
| A & Ors v Secretary of State for the Home Department [2004] QB 335 |
Legality of derogation under Article 15 ECHR and limits on detention powers. |
Upheld the derogation and clarified the scope of Part 4 of the 2001 Act. |
| R v Horseferry Road Magistrates Court ex parte Bennett [1994] 1 AC 42 |
Abuse of process jurisdiction to prevent courts being used to enforce unlawful executive acts. |
Supported the principle that courts will not admit evidence or allow proceedings based on executive misconduct. |
| R v Looseley [2001] 1 WLR 2060 |
Inherent court power to prevent abuse of process and exclude evidence obtained by improper state conduct. |
Emphasized courts' role in protecting against executive abuses including entrapment. |
| Ferrantelli and Santangelo v Italy [1996] 23 EHRR 288 |
Admissibility of evidence is primarily a matter for national law and courts. |
Supported the view that exclusion of evidence is generally governed by domestic law. |
| R (Ramda) v Secretary of State for the Home Department [2002] EWHC 1278 (Admin) |
Extradition may be refused if evidence obtained by torture will be admitted by requesting state, causing risk of unfair trial. |
Illustrated the abhorrence of convictions based on evidence obtained by torture, even from third parties. |
| R v Bow Street Metropolitan Stipendiary Magistrate ex parte Pinochet (No.3) [2000] 1 AC 147 |
International law prohibiting torture is jus cogens and justifies universal jurisdiction. |
Referenced to support the fundamental status of the prohibition of torture. |
| Montgomery v HM Advocate [2003] 1 AC 641 |
Use of evidence obtained by torture breaches Article 6 ECHR right to fair trial. |
Confirmed that the breach lies in reception of evidence obtained by torture, not merely in torture itself. |
| Austria v Italy [1963] YB 740 |
Use of evidence obtained by torture violates fair trial rights under Article 6 ECHR. |
Adopted by Council of Ministers; supports exclusion of torture evidence. |
| Barbera and Others v Spain (1988) 11 EHRR 360 |
National courts have primary responsibility for evidence admissibility; overall fairness is assessed by ECtHR. |
Showed that fairness under Article 6 is assessed in the round, not by strict exclusion rules. |
| Teixeira de Castro v Portugal (1998) 28 EHRR 101 |
Use of evidence obtained by police incitement violates right to fair trial under Article 6 ECHR. |
Supported exclusion of improperly obtained evidence impacting fairness. |
| Brown v Stott [2003] 1 AC 681 |
Article 6 rights are not absolute; limited qualification is acceptable if proportionate to public interest. |
Emphasized balancing individual rights and community interests in fairness assessments. |
| Soering v United Kingdom (1989) 11 EHRR 439 |
Prohibition against torture applies extraterritorially; extradition causing risk of torture breaches Article 3 ECHR. |
Confirmed extraterritorial application of torture prohibition relevant to evidence obtained abroad. |
| Public Committee Against Torture in Israel v Israel (1999) 7 BHRC 31 |
Use of torture and evidence obtained thereby is impermissible; democratic states must legislate explicitly if to permit. |
Illustrated democratic rejection of torture despite security threats. |
| R v Director of Serious Fraud Office ex p Smith [1993] AC 1 |
Immunity from compelled self-incrimination and concerns about abuse of judicial interrogation. |
Provided historical and principled background on exclusion of involuntary confessions. |
| R v Sang [1980] AC 402 |
Evidence generally admissible regardless of how obtained except where prejudicial effect outweighs probative value. |
Supported pragmatic approach to admissibility absent executive misconduct. |
Court's Reasoning and Analysis
The court began by contextualising the appeals within the constitutional tension between the fundamental right to liberty and the duty of the state to protect national security against the threat posed by international terrorism, particularly from Al Qa'eda and associated networks. It acknowledged the statutory framework established by the 2001 Act, the derogation under Article 15 ECHR, and the role of the Special Immigration Appeals Commission (SIAC) as a superior court of record with appellate jurisdiction over certification decisions.
On the scrutiny issue, the court held that the statutory test requires reasonable belief and reasonable suspicion, not proof beyond reasonable doubt, and that SIAC must make an objective judgment on the existence of reasonable grounds based on all circumstances, including the public risk and consequences for the individual. The court rejected submissions for a more exacting standard or less deference to executive assessments, affirming that the nature of the threat and the amorphous structure of terrorist groups justify the statutory approach and the Commission’s methodology.
Regarding the derogation issue, the court emphasized that the statutory powers must be exercised only within the scope of the lawful derogation, which is limited to threats posed by Al Qa'eda and its associated networks. The court endorsed SIAC’s broad interpretation of "international terrorist group" to include loosely connected, overlapping, informal groups and networks linked to Al Qa'eda, reflecting the operational reality of terrorism. It rejected arguments for a narrower interpretation requiring direct support for core global jihad aims.
On the critical torture issue, the court undertook a detailed analysis of three potential bases for excluding evidence obtained by torture: the English common law, Article 6 ECHR right to a fair trial, and the effect of the UN Convention Against Torture (UNCAT) Article 15. It found that:
- The common law exclusion of involuntary confessions applies primarily to confessions by defendants obtained by the state’s own agents and does not extend as an absolute rule to statements obtained under torture by foreign authorities from third parties. However, the court recognized a constitutional principle forbidding the state from relying on evidence procured by torture or connived at by the UK government, which would amount to an abuse of process.
- Article 6 ECHR requires a fair trial but does not impose a general exclusionary rule for evidence obtained by torture from third parties by foreign states; issues of such evidence generally go to weight and overall fairness rather than automatic exclusion. Nonetheless, admitting statements obtained by torture against an appellant in these proceedings, where the appellant cannot cross-examine the source, would render the process unfair.
- UNCAT Article 15 prohibits the use of statements established to have been made as a result of torture as evidence in any proceedings. While not incorporated into domestic law, the court recognized the obligation as an important interpretative guide. The court concluded that SIAC should not admit or rely on statements obtained by torture, whether from the appellant or third parties, but that evidence discovered as a result of such statements may be admissible.
The court held that the burden lies on the Secretary of State, on the balance of probabilities, to prove that a statement was not obtained by torture, given the practical disadvantages appellants face in investigating such matters. The court emphasized that the exclusion of statements obtained by torture is necessary to uphold fairness and the rule of law, even in the context of the serious national security threat and the special statutory regime.
On jurisdiction, the court disagreed with the Commission’s conclusion that revocation of certificates following appellants’ departure deprived it of jurisdiction to hear appeals. It held that the statutory language should be read to permit appeals against certification even after revocation, to allow appellants to challenge the legality of their past detention and clear their reputation.
Finally, the court rejected appellants’ procedural complaints about investigation and disclosure as either unfounded or matters within the Commission’s discretion not amounting to errors of law warranting intervention.
Holding and Implications
The court dismissed the appeals except on the point of jurisdiction concerning appellants whose certificates had been revoked after leaving the jurisdiction, where it held that the Commission erred in denying jurisdiction.
The court ruled that evidence consisting of statements obtained under torture, whether from the appellant or third parties, must not be admitted or relied on by the Commission or the Secretary of State in certification and appeal proceedings, but that evidence discovered as a result of such statements may be admissible. The burden to prove that evidence was not obtained by torture rests on the Secretary of State on the balance of probabilities.
The decision affirms the statutory framework balancing national security and individual rights, confirms the lawful scope of the derogation under Article 15 ECHR, and clarifies the procedural and evidential standards applicable before the Commission. No new precedent was set beyond the interpretation and application of existing principles to the 2001 Act context. The direct effect is that appellants whose certificates were revoked after leaving the jurisdiction retain a right of appeal before the Commission.