The applicant is a dual Dutch/Moroccan national whose Dutch nationality was withdrawn on the basis of a criminal conviction for terrorist activities. The Court rejected the applicant's appeal, concluding, among others, that prevention of statelessness is a valid reason for differentiated treatment between those with a single and with multiple nationalities, and that withdrawal of nationality is not a punitive measure. Withdrawal of nationality in addition to the criminal sentence does not violate the principle that prohibits repeated punishments for the same action.
The applicant brought an appeal challenging the constitutionality of s.19 of the Irish Nationality and Citizenship Act 1956, which governs the procedure by which revocation of naturalisation is determined. The fact that the Minister initiated the revocation process, appointed the committee charged with conducting the inquiry and then reached the final decision, was unconstitutional according to the applicant, as it breached the right to fair procedures. The Court held that s.19 was unconstitutional because it did not provide the procedural safeguards required to meet the high threshold of natural justice applicable to a person facing such severe consequences, i.e. revocation of naturalisation.