Kernrechtsfrage
Whether the Federal Office lawfully annulled the facilitated naturalization under Art. 41 BüG.
Extrahierter Entscheid
The annulment was lawful because the appellant had obtained naturalization by concealing that the marital union was not stable and by misleading the authorities.
Extrahierte Begründung
The temporal sequence and surrounding circumstances supported the inference that the marriage was not genuinely stable at the relevant time, and the appellant did not rebut the factual presumption.