Summary
An appeal against deprivation of citizenship under section 40(2) of the British Nationality Act 1981 does not permit the appellate tribunal to exercise the Home Secretary’s discretion afresh. It applies administrative-law principles to that discretion, while independently determining any applicable human-rights issue.
An appellant’s inability to participate effectively does not require the appeal to be allowed. Where a fair hearing is temporarily impossible without compromising national security, the appropriate course may be to stay the appeal.
An administrative policy guides rather than replaces statutory discretion. A court determines its meaning, but ordinarily reviews its application to particular facts for rationality. A reviewing court must also respect the executive’s institutional competence and democratic responsibility for national-security assessments.
Factual background
The Home Secretary deprived Ms Begum of British citizenship on national-security grounds and refused her leave to enter the United Kingdom. She appealed to the Special Immigration Appeals Commission and also brought judicial-review proceedings. SIAC found that she could not participate effectively in the deprivation appeal from her circumstances in Syria, but held that this did not entitle her to succeed automatically.
SIAC dismissed the leave-to-enter appeal, and the Administrative Court dismissed the related judicial-review claim: R (Begum) v Secretary of State for the Home Department [2020] EWHC 74 (Admin). The Court of Appeal and Divisional Court subsequently ordered that leave to enter be granted and remitted the question whether the deprivation decision complied with the Home Secretary’s extra-territorial human-rights policy: R (Begum) v Special Immigration Appeals Commission [2020] EWCA Civ 918; [2020] 1 WLR 4267.
The Supreme Court considered SIAC’s appellate jurisdiction, the consequence of an inability to pursue a fair and effective appeal, the courts’ role concerning national security, and the proper legal approach to an administrative policy.
Held
The Home Secretary’s appeals were allowed and Ms Begum’s cross-appeal was dismissed unanimously. Lord Reed gave the judgment, with which Lord Hodge, Lady Black, Lord Lloyd-Jones and Lord Sales agreed. The leave-to-enter appeal and both applications for judicial review were dismissed.
An appeal under section 2 of the Special Immigration Appeals Commission Act 1997, arising from the refusal of a human-rights claim, was confined to whether the decision was unlawful under section 6 of the Human Rights Act 1998. SIAC had to determine that question for itself. No Convention ground had been advanced before the Court of Appeal, so it had no basis for allowing the statutory leave-to-enter appeal.
On an appeal under section 2B against a decision under section 40(2) of the British Nationality Act 1981, SIAC could not stand in the Home Secretary’s shoes or exercise his discretion afresh. It could examine irrationality, irrelevant or omitted considerations, procedural impropriety, errors of law, findings unsupported by evidence, compliance with section 40(4), and other applicable legal obligations. Where Convention rights applied, SIAC had to assess compatibility independently.
National-security judgments were entrusted to the executive. SIAC and the courts had to give appropriate respect to the Home Secretary’s assessment because of his institutional capacity and democratic accountability. The Court of Appeal lacked evidence and jurisdiction to compare the risk posed by Ms Begum with that posed in another case, to decide that arrest or a terrorism-prevention measure would manage that risk, or to substitute its own balance between public safety and effective participation.
An inability to present an appeal effectively did not make the underlying decision unfair and did not entitle the appellant to succeed automatically. Fairness operated for both parties. If a temporary impediment made a fair hearing impossible, the proceedings could be stayed until the appellant could participate without compromising public safety. The right to an effective appeal was not a trump card over a vital public interest.
The Home Secretary’s extra-territorial human-rights policy remained an administrative policy rather than a rule of law. A policy must be understood correctly and ordinarily followed unless there is good reason to depart from it, but its application to particular facts remains for the statutory decision-maker subject to rationality review. SIAC correctly asked whether the Home Secretary had adequate material and was reasonably entitled to conclude that deprivation would not foreseeably and directly expose Ms Begum to the specified risk. No defect in that reasoning was established.
The court’s approach to earlier authorities
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Appellate history
- United Kingdom Supreme Court: The Home Secretary’s appeals were allowed and Ms Begum’s cross-appeal was dismissed: R v Special Immigration Appeals Commission [2021] UKSC 7 .
- Court of Appeal and Divisional Court: The Court of Appeal allowed the appeals concerning leave to enter and ordered the Home Secretary to grant entry and provide travel documents. The Divisional Court remitted the policy issue to SIAC but rejected the contention that the deprivation appeal succeeded automatically: R (Begum) v Special Immigration Appeals Commission [2020] EWCA Civ 918 ; [2020] 1 WLR 4267 .
- SIAC and Administrative Court: SIAC held that the deprivation decision did not render Ms Begum stateless, rejected the policy challenge, held that inability to participate effectively did not determine the deprivation appeal, and dismissed the leave-to-enter appeal: Begum v Secretary of State for the Home Department [2020] HRLR 7. The Administrative Court dismissed the judicial-review claim concerning leave to enter: R (Begum) v Secretary of State for the Home Department [2020] EWHC 74 (Admin) .
Appeal route
- Appealed from[2020] EWCA Civ 918This appealsecretary of state’s appeals allowed; ms begum’s cross-appeal dismissed unanimously
- This judgment [2021] UKSC 7 United Kingdom Supreme Court
Key cases cited
27 authorities cited.
- Hesham Ali v Secretary of State for the Home Department [2016] UKSC 60
- Mandalia v Secretary of State for the Home Department [2015] UKSC 59
- Pham v Secretary of State for the Home Department [2015] UKSC 19
- R v Secretary of State for the Home Department [2014] UKSC 60
- Secretary of State for the Home Department v Al-Jedda [2013] UKSC 62
- Al Rawi and others v The Security Service and others [2011] UKSC 34
- Home Office v Tariq [2011] UKSC 35
- Huang (FC) (Respondent) v. Secretary of State for the Home Department (Appellant) and Kashmiri (FC) (Appellant) v. Secretary of State for the Home Department (Respondent) (Conjoined Appeals) [2007] UKHL 11
- A (FC) and others (FC) (Appellants) v. Secretary of State for the Home Department (Respondent) [2004] UKHL 56
- Secretary of State for the Home Department v. Rehman [2001] UKHL 47
- Alconbury [2001] UKHL 23
- Hamilton v Al Fayed [2001] 1 AC 395
- Edwards v Bairstow [1955] UKHL 3
- R (W2 and IA) v Secretary of State for the Home Department [2017] EWCA Civ 2146
- B2 v Secretary of State for the Home Department [2013] EWCA Civ 616
- LE (Jamaica), R (on the application of) v Secretary of State for the Home Department [2012] EWCA Civ 597
- AN v Secretary of State for the Home Department [2010] EWCA Civ 869
- Secretary of State for the Home Department v M [2004] EWCA Civ 324
- Carnduff v Rock [2001] EWCA Civ 680
- Evans, R (on the application of) v Secretary of State for Defence [2010] EWHC 1445 (Admin)
- Banbury Visionplus Ltd v HM Revenue & Customs [2006] EWHC 1024 (Ch)
- BA v Secretary of State for the Home Department [2018] UKUT 85 (IAC)
- Jurgen Deliallisi v The Secretary of State for the Home Department [2013] UKUT 439 (IAC)
- U2 v Secretary of State for the Home Department Appeal No SC/130/2016 (unreported), 19 December 2019
- Al-Jedda v Secretary of State for the Home Department Appeal No SC/66/2008 (unreported), 7 April 2009
- John Dee Ltd v Comrs of Customs and Excise [1995] STC 941
- Customs and Excise Comrs v J H Corbitt (Numismatists) Ltd [1981] AC 22
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Cases citing this case
52 later cases · 37 positive · 10 neutral · 5 caution
Most senior citing decisions:
- Devant Maharaj v National Gas Company of Trinidad and Tobago (Trinidad and Tobago) [2026] UKPC 14 considered
- Secretary of State for the Home Department v Kolicaj [2025] UKSC 49 applied
- In the matter of an application by the Secretary of State for Northern Ireland for Judicial Review [2025] UKSC 47 applied
- U3 v Secretary of State for the Home Department [2025] UKSC 19
- CAO v Secretary of State for the Home Department (Northern Ireland) [2024] UKSC 32
- R (on the application of AAA (Syria) and others) v Secretary of State for the Home Department [2023] UKSC 42
- R (on the application of VIP Communications Ltd (In Liquidation)) v Secretary of State for the Home Department [2023] UKSC 10
- R v Commissioners for Her Majesty’s Revenue and Customs [2021] UKSC 25
- Betim Onuzi v Secretary of State for the Home Department [2025] EWCA Civ 1337
- D5 & Ors v Secretary of State for the Home Department [2025] EWCA Civ 957
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