Questione giuridica chiave
Whether the appeal against annulment of facilitated naturalization is admissible and whether the Federal Tribunal may review the facts and expediency.
Decisione estratta
The appeal was formally admissible, but new facts, purely appellatory challenges, and complaints about expediency were inadmissible.
Motivazione estratta
Federal Tribunal review is limited to manifestly incorrect fact-finding and legal violations; it does not reassess evidence freely or review expediency.