Pham v Secretary of State for the Home Department, United Kingdom Supreme Court, Judgment, Law, casemine.com

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Attorney(S)

Appellant Hugh Southey QC Alex Burrett (Instructed by J D Spicer Zeb, Solicitors)
Respondent Robin Tam QC Tim Eicke QC Melanie Cumberland (Instructed by Treasury Solicitor)
Intervener (Open Society Justice Initiative) James A Goldston Simon Cox Laura Bingham (Instructed by Freshfields Bruckhaus Deringer LLP)

Judges

LORD REED:

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Pham v. Secretary of State for the Home Department

Smart Summary

Factual and Procedural Background

The Appellant was born in Vietnam in 1983 and became a Vietnamese national by birth. After time spent in Hong Kong, the Appellant’s family arrived in the United Kingdom in 1989, obtained indefinite leave to remain, and were naturalised as British citizens in 1995. None of the family renounced Vietnamese nationality.

The security services later assessed that the Appellant posed a terrorist threat, alleging (denied by the Appellant) that he had received training from Al-Qaida while in Yemen between 2010 and 2011. On 22 December 2011 the Secretary of State made an order under section 40(2) of the British Nationality Act 1981 depriving the Appellant of British citizenship, contending that the decision was “conducive to the public good” and that the Appellant retained Vietnamese nationality, so section 40(4) (the statutory bar on creating statelessness) was not engaged. A deportation decision followed the same day. The Vietnamese government thereafter declined to recognise the Appellant as a Vietnamese citizen.

The Appellant appealed to the Special Immigration Appeals Commission (SIAC). In June 2012 SIAC held that the deprivation decision would render the Appellant stateless and allowed the appeal. The Court of Appeal reversed SIAC in May 2013 and remitted the case for determination of the remaining grounds. Meanwhile, the United States requested the Appellant’s extradition; domestic extradition proceedings ran in parallel and were ultimately dismissed.

The matter reached the Supreme Court, where the principal question became whether, as at 22 December 2011, the Appellant was “considered as a national by any State under the operation of its law” within the meaning of Article 1(1) of the 1954 Convention relating to the Status of Stateless Persons.

Legal Issues Presented

Whether, for the purposes of Article 1(1) of the 1954 Convention as incorporated by section 40(4) of the 1981 Act, the phrase “under the operation of its law” is determined solely by the text of a State’s nationality legislation or can include governmental practice not effectively challengeable in that State’s courts.
If the Appellant was not stateless, whether deprivation of British (and hence EU) citizenship nevertheless had to satisfy a proportionality test drawn from European Union law.
Whether the Secretary of State’s decision was rendered unlawful for disproportionality if EU law applied.

Arguments of the Parties

Appellant’s Arguments

Vietnamese law did not permit dual nationality at the operative time; therefore Vietnamese citizenship was automatically lost when British citizenship was acquired, rendering the deprivation order statelessness-creating and prohibited by section 40(4).
Even if technically retaining Vietnamese nationality, in practice the Vietnamese government refused to recognise him, which should be treated as determinative under Article 1(1).
European Union citizenship would be lost with British citizenship; under EU law that consequence required a rigorous proportionality assessment which the Secretary of State had not undertaken.

The Secretary of State’s Arguments

Vietnamese legislation since 1988 no longer provided for automatic loss of nationality on acquiring another, and the Appellant had never been deprived of Vietnamese citizenship by any lawful act of Vietnam.
Governmental practice inconsistent with Vietnamese law could not override the clear statutory framework, so Article 1(1) was not satisfied.
Questions of EU proportionality lay outside the scope of the SIAC preliminary issue and were foreclosed by domestic authority.

Table of Precedents Cited

Precedent	Rule or Principle Cited For	Application by the Court
Kuric v Slovenia (2013) 56 EHRR 20	Article 8 ECHR: legality of “erasure” leading to statelessness	Noted by an intervener; court held it shed no light on the present statutory interpretation issue.
ZZ (France) v Secretary of State [2013] QB 1136	EU law requirement to disclose the “essence” of national-security grounds	Cited as a potential procedural safeguard were EU law to apply; Supreme Court left relevance to SIAC.
R (G1) v Secretary of State [2013] QB 1008	Domestic authority doubting EU law’s reach over deprivation of citizenship	Court of Appeal decision formed backdrop; Supreme Court declined to revisit within preliminary issue.
R v Secretary of State, Ex p Kaur (Case C-192/99)	Nationality determined solely by national law	Used to illustrate limits on EU competence over citizenship.
Micheletti v Delegación del Gobierno (Case C-369/90)	Each State defines nationality, subject to EU law	Referred to in discussing EU/national competence.
Rottmann v Freistaat Bayern (Case C-135/08)	Loss of EU citizenship triggers proportionality review under EU law	Central to Appellant’s EU argument; Supreme Court left issue to SIAC.
Anisminic Ltd v Foreign Compensation Commission [1969] 2 AC 147	Jurisdictional errors of law	Cited in discussion of domestic courts’ role in defining treaty limits.
Smith & Grady v UK (1999) 29 EHRR 493	ECtHR review of domestic proportionality	Illustrated differences between domestic and Convention review standards.
Van Duyn v Home Office (Case 41/74)	Principle that a State must admit its own nationals	Quoted in discussion of constitutional right of abode.
R (Bancoult) v Foreign & Commonwealth Secretary (No 2) [2009] AC 453	Common-law right not to be expelled from the realm	Used to show fundamental nature of citizenship rights.
Pomiechowski v District Court of Legnica [2012] UKSC 20	Reaffirmation of the right of abode	Cited as further authority on citizenship’s importance.
R (Chester) v Justice Secretary [2014] 1 AC 271	EU rights often have a cross-border element	Relied on by the Secretary of State to limit EU reach.
HS2 Action Alliance Ltd v Transport Secretary [2014] 1 WLR 324	Parliamentary sovereignty and EU competence	Discussed regarding constitutional limits on EU law.
Assange v Swedish Prosecution Authority [2012] 2 AC 471	Presumption that Parliament intends consistency with EU obligations	Cited in constitutional competence analysis.
Kennedy v Charity Commission [2014] 2 WLR 808	Flexible intensity of judicial review; overlap of proportionality and reasonableness	Relied on to explain domestic proportionality-type scrutiny.
McCarthy v Home Secretary (Case C-434/09) [2011] All ER (EC) 729	EU free-movement rules confined to cross-border situations	Used to question EU law relevance.
Harrison v Home Secretary [2012] EWCA Civ 1736	Scope of Zambrano principle	Referenced in debate on EU citizenship reach.
Ruiz Zambrano v ONEm (Case C-34/09)	“Substance of EU citizenship rights” doctrine	Appellant relied on; Court noted continuing controversy.
Dereci v Bundesministerium (Case C-256/11)	Clarification of Zambrano scope	Considered in assessing EU law arguments.
Bugdaycay v Home Secretary [1987] AC 514	Heightened scrutiny where fundamental rights at stake	Cited to show domestic courts’ capacity for intense review.
R v Home Secretary, Ex p Brind [1991] 1 AC 696	Variable intensity in Wednesbury review	Discussed in comparing rationality and proportionality.
R v Ministry of Defence, Ex p Smith [1996] QB 517	“Anxious scrutiny” in rights-sensitive cases	Used as example of domestic proportionality-like analysis.
Bank Mellat v HM Treasury (No 2) [2014] AC 700	Structured proportionality test in domestic law	Illustrated convergence of domestic and EU proportionality.
R (Lord Carlile) v Home Secretary [2014] 3 WLR 1404	Judicial respect for executive’s national-security assessment within proportionality review	Quoted in discussing balance between rights and security.
Council of Civil Service Unions v Minister for the Civil Service [1985] AC 374	Traditional threefold grounds of judicial review	Contrasted with later, more flexible approaches.
R v Chief Constable of Sussex, Ex p International Trader's Ferry [1999] 2 AC 418	Overlap between reasonableness and proportionality	Cited to show practical convergence.
R v Home Secretary, Ex p Leech [1994] QB 198	Implied proportionality limits on statutory powers	Referenced in Lord Reed’s analysis.
R (Daly) v Home Secretary [2001] 2 AC 532	House of Lords application of proportionality to prisoners’ rights	Used to illustrate domestic proportionality reasoning.
Hall & Co Ltd v Shoreham UDC [1964] 1 WLR 240	Unreasonableness grounded in disproportionality	Cited as early domestic example.
R v Barnsley MBC, Ex p Hook [1976] 1 WLR 1052	Similar early domestic proportionality-type reasoning	Cited in same context.
Associated Provincial Picture Houses v Wednesbury Corp [1948] 1 KB 223	Classic “unreasonableness” test	Contrasted with modern, more nuanced review.

Court's Reasoning and Analysis

Statelessness Issue: Judge Carnwath, delivering the lead judgment, analysed Article 1(1) of the 1954 Convention. While recent UNHCR guidance allows state “practice” to inform whether a person is “considered as a national,” the Court found no evidence that, as of 22 December 2011, Vietnam had taken any formal or quasi-formal step (law, decree or settled practice) to deny the Appellant nationality. Vietnamese legislation since 1988 required an express act to remove citizenship, and none had occurred. Consequently, the Secretary of State’s deprivation order did not render the Appellant stateless.

Treatment of UNHCR Materials: The Court accepted that practice might in principle be relevant but concluded SIAC had erred by treating Vietnam’s later reluctance to accept the Appellant as retroactively decisive. A government’s post-factum diplomatic stance could not retrospectively alter nationality status.

European Law Questions: The Court declined to decide whether EU proportionality principles applied. Those matters were outside SIAC’s defined preliminary issue and required factual findings (e.g., security evidence) not yet made. SIAC was invited to consider EU arguments, if raised by amendment, so that any further appellate review would have a factual foundation.

Proportionality under Domestic Law: Multiple concurring opinions (Judges Mance, Sumption and Reed) explained that English common law already allows intense, context-sensitive review—functionally similar to proportionality—where fundamental rights such as citizenship are at stake, diminishing any practical divergence between domestic and EU standards.

Holding and Implications

Holding: APPEAL DISMISSED. The Supreme Court upheld the Court of Appeal’s decision that the deprivation order did not contravene section 40(4) and remitted the remaining grounds (including proportionality and EU law issues) to SIAC for determination.

Implications: The judgment clarifies that, under the 1954 Convention, mere diplomatic unwillingness to recognise a person does not equate to loss of nationality absent a lawful act or established practice amounting to law. It also signals that domestic judicial review can, where fundamental rights are involved, supply scrutiny comparable to proportionality analysis, potentially narrowing the practical gap between common-law and EU standards. No new binding precedent on EU citizenship was created, and further consideration is left to SIAC.