Question juridique clé
Whether Röllin met the statutory conditions to renounce Swiss citizenship and be discharged from cantonal and municipal citizenship.
Solution extraite
He had no domicile in Switzerland, was legally capable under the law of his residence, and had acquired U.S. citizenship; the statutory conditions were fulfilled.
Motifs extraits
Art. 6 of the 1876 federal citizenship act limits refusal to cases where legal prerequisites are lacking; once they are met, authorities must accept the renunciation.