The case concerned the interpretation of Article 19 of the Directive (2011/95/EU, Qualification Directive). Specifically, the applicant had been granted subsidiary protection by the Austrian authorities on the mistaken basis that he was an Algerian national. The applicant was not responsible for the mistake, having rather declared throughout the proceedings that he was stateless. The CJEU held that under the Qualification Directive a State is under the obligation to revoke subsidiary protection if information emerges to prove that an individual never satisfied the requirements under the Directive.
After discovering that the applicant had omitted information when applying for Russian nationality, his nationality was annulled and an entry ban was enforced. The Court applied a two-pronged approach to assess whether the deprivation of the applicant’s nationality was an interference with his right to private and family life, which assessed (i) the consequences for the applicant, and (ii) whether the measure was arbitrary. In light of the far-reaching consequences of this decision and its apparent arbitrary nature, the Court held that the annulment interfered with the applicant's rights guaranteed under Article 8 ECHR. Further, the Court found that the expulsion of the applicant from Russian territory failed to respect the principle of proportionality, given the lack of evidence of any threat to Russian national security posed by the applicant, thereby violating Article 8.