Introduction to the Series

In international human rights law, the concept of “refugee” has not acquired a binding and uniform legal definition. Nevertheless, for the purposes of enjoying the fundamental rights guaranteed by the European Convention on Human Rights (ECHR), any person within the jurisdiction of a Contracting State — regardless of nationality — may claim protection under the Convention. Within this framework, a wide range of individuals, including refugees, asylum-seekers, those whose claims have been rejected, and persons excluded from international protection on grounds of national security or public order, are entitled to benefit from the minimum protection afforded by the Convention.

This series of articles examines, in light of the established case-law of the European Court of Human Rights (ECtHR or “the Court”), the protection regime available to refugees under the ECHR. The discussion is organised around two principal themes: first, the protection afforded to refugees against expulsion under the substantive provisions of the Convention; and second, the procedural safeguards attached to expulsion proceedings. The present instalment opens with the cornerstone of this protective architecture — the principle of non-refoulement under Article 3 ECHR.

1. The Absolute Character of Article 3

Article 3 of the Convention provides that “no one shall be subjected to torture or to inhuman or degrading treatment or punishment.” This provision enshrines an absolute prohibition that admits of no derogation, even in time of war or other public emergency threatening the life of the nation. Its scope extends not only to treatment inflicted within the territory of a Contracting State but also to serious violations that an individual may face as a consequence of being expelled or extradited.

The Court confirmed this extraterritorial dimension in Soering v United Kingdom,¹ holding that where substantial grounds have been shown for believing that the person concerned, if expelled, would face a real risk of being subjected to treatment contrary to Article 3 in the receiving country, the responsibility of the Contracting State is engaged. The Court reasoned that a Contracting State cannot absolve itself of its Convention obligations by transferring an individual to another jurisdiction where such treatment is foreseeable. This principle — known as indirect responsibility — represented a watershed in the Court’s jurisprudence.

The absolute character of Article 3 was reinforced in Chahal v United Kingdom² and subsequently in Saadi v Italy,³ where the Court unequivocally held that the mere fact that an individual may pose a threat to national security cannot justify the displacement of Article 3 protection. Accordingly, the principle of non-refoulement imposes an absolute prohibition on the expulsion of refugees and other persons seeking international protection to countries where they face a serious risk of human rights violations, and places Contracting States under an obligation to assess such risk objectively and in substance.

2. Chahal v United Kingdom: The Primacy of Article 3 over National Security

Chahal v United Kingdom stands as a foundational authority on the absolute application of the non-refoulement principle even in the face of asserted national security concerns. The applicant, an Indian national and Sikh activist, faced deportation from the United Kingdom to India. The respondent Government sought to justify the expulsion on the basis that the applicant’s activities constituted a threat to national security.

The Court, however, placed determinative weight on the applicant’s risk of being subjected to torture or ill-treatment in India and emphasised that the content of Article 3 is not susceptible to balancing against public interest considerations. The Court underscored the absolute nature of Article 3, holding that national security or other public interest grounds cannot justify exposing an individual to proscribed treatment. Where there are substantial grounds to believe that expulsion will result in a real risk of torture or inhuman treatment, that risk alone constitutes a violation of Article 3; the purpose, justification, or public utility of the expulsion is irrelevant to this assessment.

The Chahal judgment has produced a far-reaching body of jurisprudence relevant not only to refugees and asylum-seekers but also to individuals facing expulsion in the context of counter-terrorism policies. The Court further criticised the arbitrariness of the applicant’s administrative detention, holding that deprivation of liberty in this context may engage a separate violation under Article 5 ECHR.

3. Bensaid v United Kingdom: Psychological Integrity within Article 3

In Bensaid v United Kingdom,⁴ the Court extended the interpretative reach of Article 3 beyond the risk of physical ill-treatment to encompass serious effects on the psychological integrity of the individual. The applicant, an Algerian national diagnosed with schizophrenia, faced expulsion from the United Kingdom — where he had received long-term treatment — to Algeria. He contended that inadequate access to medical care in Algeria would result in inhuman treatment. Specifically, he argued that the medication required for his treatment would not be available free of charge in the absence of insurance coverage; that the nearest hospital was 75 to 80 kilometres from his family’s residence; that regional terrorism would render travel difficult; and that his treating physician had issued strong clinical warnings regarding the risk of relapse.

While the Court found that there was no direct risk of physical torture or violence in Algeria, it accepted in principle that the psychiatric effects of expulsion could, in certain circumstances, fall within the scope of Article 3. On the facts, however, the Court considered that treatment options in Algeria had not been shown to be entirely unavailable, and that the applicant’s situation did not reach the required threshold of severity. By contrast, in D v United Kingdom,⁵ the Court had previously found a violation of Article 3 in the case of an applicant at the threshold of death who would have faced dying in conditions incompatible with human dignity following expulsion.

Bensaid marked the first occasion on which the Court examined the applicability of Article 3 to the mental-health consequences of expulsion, thereby broadening the scope of the non-refoulement principle. The Court emphasised that not every expulsion will give rise to an Article 3 violation; only in “very exceptional” and “compelling” circumstances would such consequences amount to inhuman treatment. The judgment is significant for demonstrating the Court’s sensitivity to psychological vulnerability under Article 3, while also affirming that the absolute nature of the provision does not automatically translate into an absolute prohibition on expulsion in every case. Bensaid thus marks an important threshold for understanding the limits of Convention protection in the context of refugees and asylum-seekers facing barriers to mental-health treatment.

4. The Standard of Proof and the “Real Risk” Test

An Article 3 violation need not be established by proof “beyond reasonable doubt” of past torture or inhuman treatment. According to the Court’s settled case-law, an individual facing expulsion bears the burden of demonstrating that there are substantial grounds for believing that there exists a “real risk” of such treatment in the country of destination.

This risk is assessed by reference both to the applicant’s individual circumstances and to the general human rights record and systemic conditions of the receiving State. The types of treatment relevant to this assessment — torture, inhuman or degrading treatment, or punishment — are each absolutely prohibited under Article 3. The Court’s approach demonstrates that the non-refoulement principle operates not only as protection against completed violations but also as a preventive safeguard against foreseeable and serious risks.

5. The Scope of “Degrading Treatment”: Dignity and Psychological Integrity

The Court has consistently held that Article 3 extends beyond the infliction of physical pain or severe torture to encompass treatment that offends human dignity and threatens psychological integrity. This approach has been particularly significant in defining the contours of “degrading treatment.”

In Pretty v United Kingdom,⁶ concerning a terminally ill applicant whose request to die with dignity was refused, the Court observed that rendering an individual helpless in this manner could adversely affect their psychological integrity. Although no violation was found on the facts, the Court made clear that degrading treatment is not confined to physical violence; it may also arise where an individual is consigned to suffering or to a condition of helplessness.

Similarly, in Peers v Greece,⁷ the prolonged detention of a prisoner in conditions of poor hygiene, inadequate living space, and systemic neglect was held to constitute degrading treatment under Article 3. The Court emphasised that a State may violate Article 3 even in the absence of physical violence or malicious intent, by depriving an individual of minimum humane conditions. This judgment is particularly relevant to the assessment of conditions awaiting expelled individuals in the destination country, as it confirms that degrading conditions may fall within the Convention’s scope.

Taken together, this case-law demonstrates that the Court conceives of “degrading treatment” in both physical and psychological dimensions, placing respect for human dignity at the core of Article 3.

6. Socio-Economic Deprivation and Article 3: M.S.S. v Belgium and Greece

The Court’s case-law has further extended Article 3 to situations of extreme socio-economic deprivation that may await an expelled individual. In M.S.S. v Belgium and Greece,⁸ the applicant was held to have been subjected to inhuman and degrading treatment as a result of being systematically deprived of basic needs — shelter, food, and hygiene — in Greece. The Court found that Greece had failed to provide asylum-seekers with minimum living conditions, resulting in treatment contrary to Article 3 arising from both poor detention conditions and the absence of accommodation and subsistence support.

The judgment clarified that Article 3 may be engaged not only by positive State conduct but also by structural failures to comply with protective obligations. Moreover, M.S.S. significantly disrupted the presumption of “mutual trust” underpinning the Dublin system. The Court held that a Contracting State cannot automatically rely on the presumption that another Contracting State will treat asylum-seekers in conformity with the Convention. Belgium’s transfer of an asylum-seeker to Greece — despite known systemic deficiencies — was held to engage Belgium’s direct responsibility. As a consequence, the transferring State must conduct an active inquiry into conditions in the receiving State.

7. Individualised Assessment: The Case of Children and Nsona to Rahimi

The Court does not treat every expulsion, even of vulnerable groups such as children, as automatically violating Article 3. It instead conducts an individualised analysis of all the circumstances. An illustration of this approach is found in Nsona v The Netherlands,⁹ where Dutch authorities hastily expelled a nine-year-old child, entrusting her care to third parties in the receiving country. The applicant argued that this expulsion threatened both the child’s physical and psychological integrity. The Court, however, concluded that the circumstances did not entail a risk amounting to “inhuman or degrading treatment” within the meaning of Article 3. No significant deficiency in care arrangements was identified, and the child’s reception environment was not found to impair her dignity.

This reasoning attracted considerable criticism from human rights advocates for its apparent disregard of the special status and protective needs of children. Nevertheless, the judgment illustrates that the Court, in assessing the applicability of Article 3 to expulsion, considers not only the vulnerability of the individual but also the combined gravity and seriousness of the concrete circumstances.

The Court’s approach has since evolved significantly. A comparison with Rahimi v Greece¹⁰ reveals a marked shift in the Court’s treatment of child asylum-seekers facing detention and expulsion:

Criterion	Nsona v Netherlands (1996)	Rahimi v Greece (2011)
Age	9 years old	15 years old
Accompaniment	With a relative	Entirely unaccompanied
Detention conditions	Short-term, no significant harm	Prolonged, inhuman conditions
Post-detention support	Family support available	No State support; left to live on the streets
Court’s assessment	Minimum threshold not reached	Cumulative conditions found inhuman
Outcome	No violation	Violation of Articles 3 and 13

Whereas Nsona reflected a more restrictive approach prioritising the State’s margin of appreciation, Rahimi took into account the child’s unaccompanied status, vulnerability, and the State’s positive obligations, producing a considerably more protective interpretation. Rahimi is accordingly regarded as a turning point in the Court’s case-law on the effective protection of the fundamental rights of child asylum-seekers.

Conclusion to Part I

Article 3 ECHR operates as the substantive cornerstone of the Convention’s protection against expulsion. Its absolute character, reaffirmed consistently from Soering through Chahal and Saadi, prevents Contracting States from justifying expulsion by reference to national security or public order considerations. The Court has, moreover, expanded the reach of Article 3 to cover psychological integrity (Bensaid, Pretty), structural deprivation of basic needs (M.S.S.), and the particular vulnerabilities of specific groups (the Nsona–Rahimi line).

The “real risk” standard operates as a preventive mechanism: Article 3 is engaged not only by realised violations but by foreseeable and serious risks. The Court’s jurisprudence, however, is not undifferentiated; each case is assessed on its own facts, and Article 3 is only engaged where the threshold of severity is met.

While Article 3 establishes a robust substantive protection, it does not exhaust the Convention’s safeguards against expulsion. Expulsion may also engage Article 8 ECHR — the right to respect for private and family life — particularly where the individual has established significant personal and familial ties within the Contracting State. Part II of this series will examine this dimension of protection.

¹ Soering v United Kingdom App no 14038/88 (ECtHR, 7 July 1989).
² Chahal v United Kingdom App no 22414/93 (ECtHR, 15 November 1996).
³ Saadi v Italy App no 37201/06 (ECtHR, 28 February 2008).
⁴ Bensaid v United Kingdom App no 44599/98 (ECtHR, 6 February 2001).
⁵ D v United Kingdom App no 30240/96 (ECtHR, 2 May 1997).
⁶ Pretty v United Kingdom App no 2346/02 (ECtHR, 29 April 2002).
⁷ Peers v Greece App no 28524/95 (ECtHR, 19 April 2001).
⁸ M.S.S. v Belgium and Greece App no 30696/09 (ECtHR, 21 January 2011).
⁹ Nsona v The Netherlands App no 23366/94 (ECtHR, 28 November 1996).
¹⁰ Rahimi v Greece App no 8687/08 (ECtHR, 5 April 2011).