Court name: Conseil d'État
State: France
Date of decision:

Article 25 of the French Civil Code provides that an individual may be stripped of their French nationality where, inter alia, it was acquired by naturalization and where the individual has been convicted of a crime that constituted an attack on the fundamental interests of France or an act of terrorism. Deprivation of French nationality is not allowed where it would render the individual stateless. The applicant was deprived of his French nationality, which he had acquired by naturalization, following a decision of the Paris Criminal Court (Tribunal de Grande Instance de Paris) convicting him for his participation in an association of criminals with a view to preparing an act of terrorism. That court found that he had joined a terrorist group and participated in training and armed operations of that group. The Council of State (Conseil d’État) upheld the decree of deprivation of nationality because the applicant held Algerian nationality since birth and could not be deprived of it since the Algerian code of nationality only authorises the deprivation of nationality for persons who have acquired it after birth. Therefore, the loss of French nationality would not render him stateless and was thus not illegal under French law. The Council of State also ruled on the proportionality of the decree with regard to the European Convention on Human Rights and found that, given the seriousness of the crimes committed by the applicant, the challenged decree did not disproportionately infringe the right to respect for his private life guaranteed by Article 8 of the ECHR.

Court name: Supreme Administrative Court
State: Poland
Date of decision:

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.

Court name: Constitutional Court of Austria (Verfassungsgerichtshof)
State: Austria
Date of decision:

The applicant acquired Austrian nationality in 1995 and renounced her former Turkish nationality in 1996 as a condition for retaining the Austrian nationality. In 2018 the Austrian authorities declared that she has no longer been an Austrian national since 1997 as it appeared that she voluntarily re-acquired her Turkish nationality at that time, which is a ground for automatic loss of Austrian nationality. The Court set aside the determination of loss of Austrian nationality as it did not carry out a proportionality test on the basis of the Tjebbes judgment.