Pham v The Secretary of State for the Home Department

Factual and Procedural Background

The Appellant, originally a Vietnamese national by birth, was deprived of British nationality by the Secretary of State under section 40(2) of the British Nationality Act 1981 on 22 December 2011 ("the Deprivation Order") on grounds that deprivation was conducive to the public good due to alleged terrorism-related activities and links to Islamist extremists. The Appellant traveled to Yemen in 2011, stayed six months, received terrorist and weapons training, and engaged in terrorism-related activities. He initially denied these allegations, claiming innocent travel purposes.

There was extensive litigation regarding whether the Deprivation Order rendered the Appellant stateless. The Supreme Court held he was not de jure stateless as Vietnam refused to recognize his citizenship, making him de facto stateless. The Appellant’s appeal against the Deprivation Order proceeded through SIAC and this Court, focusing on whether deprivation could occur absent a current risk of harm, given that the Appellant was extradited to the United States, pleaded guilty to terrorism charges, and is serving a 40-year sentence in a high-security prison.

The Secretary of State applied to strike out the Appellant's appeal on the basis that it disclosed no reasonable grounds. The judge below (Mitting J) dismissed the appeal, holding that citizenship deprivation could be justified on the basis that the Appellant repudiated his loyalty obligations, regardless of current risk, and that proportionality had been considered. The Appellant now appeals that decision.

Legal Issues Presented

1. Whether a person can be deprived of British citizenship on the basis that he has repudiated his obligation of loyalty.
2. Whether a person can be deprived of British citizenship on that basis if he does not pose a risk to national security.
3. Whether SIAC wrongly failed to consider the proportionality of the deprivation decision when striking out the appeal.
4. If proportionality depends on the relevance of EU law, whether and to what extent EU law applies to deprivation decisions.
5. Whether SIAC applied the wrong legal test in striking out the appeal by construing the strike-out provision differently from analogous Family Procedure Rules.

Arguments of the Parties

Appellant's Arguments

• Citizenship deprivation requires a current risk of harm; here, the risk is managed by the criminal justice system and is negligible given the Appellant’s imprisonment and recantation.
• Deprivation must be proportionate, considering the impact on the individual and family, including consular access and ties to the UK.
• Past conduct alone should not justify deprivation absent current risk; no SIAC case had previously deprived citizenship solely on past conduct.
• The threshold for deprivation is high due to the fundamental nature of citizenship and international conventions against statelessness.
• SIAC erred procedurally by striking out the appeal summarily without full evidential consideration, unlike summary judgment procedures in other courts.

Secretary of State's Arguments

• Deprivation can be justified solely on repudiation of loyalty, regardless of current risk.
• The duty of loyalty is fundamental; citizenship carries obligations enforceable by deprivation.
• Section 40 BNA contains no requirement for current risk of harm as a precondition for deprivation.
• Proportionality was properly considered and the case is hopeless on its facts.
• SIAC rules permit consideration of evidence at strike-out stage; summary dismissal was appropriate.
• Consular access and family contact issues are governed by US law and do not affect the deprivation decision.

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Pham v Secretary of State for the Home Department [2015] UKSC 19	Definition of statelessness for section 40 BNA; flexible approach to judicial review and proportionality.	Confirmed no de jure statelessness if nationality exists in law elsewhere; proportionality principles guide deprivation decisions.
R (Lumsdon) v Legal Services Board [2015] UKSC 41	Test for proportionality under EU law differs from ECHR; principle of proportionality clarified.	Supreme Court’s approach to proportionality referenced to assess deprivation decision.
Rottman v Friestadt Bayern [2010] QB 761	EU law requires proportionality in citizenship deprivation; recognition of citizenship’s reciprocal rights and duties.	Applied to confirm proportionality requirement and legitimacy of deprivation on public interest grounds.
Trop v Dulles 356 US 86 (1957)	Citizenship described as "the right to have rights."	Referenced to emphasize the fundamental nature of citizenship.
L2 v SSHD; Al Jedda v SSHC [2009]	Weight to be given to Secretary of State’s assessment of national security risk.	Supported the need for balancing risk and rights in deprivation context.
R v Bouchereau [1978] QB 732	Past conduct may constitute a present threat for public policy purposes.	Supported the proposition that serious past conduct alone may justify deprivation.
Robinson (Jamaica) v Secretary of State for the Home Department [2018] EWCA Civ 85	Clarification of public policy threat test requiring specific appraisal of present threat.	Used to analogize public good assessment in deprivation cases.
Joyce v DPP [1947] AC 347	Common law recognition of treason as repudiation of loyalty obligations.	Supported the historical basis for deprivation on repudiation of loyalty.
Wyatt v Vince [2015] 1 WLR 1228	Interpretation of procedural rules regarding power to grant summary judgment versus strike out.	Distinguished SIAC procedural rules from Family Procedure Rules regarding summary dismissal powers.
Nazli v Stadt Nurnberg (Case 340/97)	EU law does not permit expulsion solely for deterrence; risk must relate to individual conduct.	Clarified that EU law requires a specific risk test but does not always require current threat.

Court's Reasoning and Analysis

The Court recognized the importance of British citizenship as a fundamental right carrying reciprocal obligations of loyalty. The deprivation power under section 40 BNA requires the Secretary of State to be satisfied that deprivation is "conducive to the public good." The Court interpreted this to mean the Secretary of State’s current opinion must be satisfied, but it need not be predicated on a current risk of harm. The repudiation of loyalty alone can justify deprivation, provided it does not render the person de jure stateless.

The Court considered the Appellant’s admitted terrorist conduct and the fact that he is serving a lengthy sentence in the United States. It rejected the argument that deprivation must be based on current risk, reasoning that if this were so, longer sentences would paradoxically reduce the likelihood of deprivation. The Court found that serious past conduct can constitute a sufficient present risk or ground for deprivation, consistent with EU jurisprudence on proportionality and public good.

Regarding proportionality, the Court held that the judge below had carried out an appropriate balancing exercise, weighing the Appellant’s rights against the public interest, including the impact on family and consular access. The Court found no procedural error in SIAC striking out the appeal summarily under Rule 11B, noting that the rules contemplate consideration of evidence at this stage and that the absence of a summary judgment power in other procedural contexts did not preclude such an approach here.

The Court also engaged with the UN Convention on the Reduction of Statelessness 1961 and related statutory history, concluding that the UK’s legislative framework aligns sufficiently with the Convention, and that deprivation consistent with repudiation of loyalty and public good is lawful.

Holding and Implications

The appeal is dismissed.

The Court affirmed that British citizenship may be deprived on the basis of repudiation of loyalty without the necessity of showing a current risk of harm. The Secretary of State’s satisfaction that deprivation is conducive to the public good suffices, subject to the prohibition on causing de jure statelessness and the requirement of proportionality. The Court upheld the procedural propriety of SIAC’s summary strike out of the appeal under its procedural rules. This decision confirms that citizenship deprivation is a serious but legitimate tool to address fundamental breaches of loyalty, with proportionality and statutory safeguards ensuring protection against arbitrary deprivation. No new precedent was established beyond the application of existing principles to the facts of this case.