After discovering that the applicant had omitted information when applying for Russian citizenship, his citizenship was annulled and an entry ban was enforced. 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 as guaranteed under Article 8 of the Convention. Furthermore, the expulsion of the applicant from Russian territory failed to respect the principle of proportionality, particularly given the lack of evidence of any threat to Russian national security posed by the applicant, thereby violating Article 8.
Five applicants of dual nationality, convicted in 2007 of participating in a criminal association in a terrorist context, were stripped of their French nationality in October 2015 by Prime Minister decrees. The Court held that the decision to forfeit the applicants’ French nationality did not have a disproportionate impact on their private lives and therefore was not in violation of Article 8 of the Convention.
The applicant was born in the US, and his birth certificate indicated a Polish national as the father, and an unknown surrogate mother as the mother. Polish authorities refused to confirm the applicant acquired Polish nationality at birth as a child of a Polish parent, because the birth certificate is against the Polish public order, in particular the prohibition of surrogacy. The courts ruled in favour of the applicant, stating that confirmation of his Polish nationality on the basis of the birth certificate does not amount to validation of surrogacy.