Question juridique clé
Whether the federal appeal was admissible despite the cantonal finding of sham marriage and the appellants' complaints only about facts and hearing rights.
Solution extraite
The appeal lacked sufficient reasoning because the appellants only challenged factual findings inadequately and did not properly show a violation of hearing rights or arbitrariness.
Motifs extraits
The Federal Supreme Court was bound by the cantonal facts unless manifestly incorrect or unlawful. The complaint against the anticipatory assessment of evidence was not properly substantiated, and no legally sufficient argument attacked the legal application independently of the facts.