Questione giuridica chiave
Whether the cassation appeal was admissible when it attacked the cantonal court's assessment of evidence and factual findings rather than a violation of federal law.
Decisione estratta
The appeal was inadmissible because it challenged only factual assessment and not a reviewable violation of federal law.
Motivazione estratta
Cassation lies only for federal-law errors; factual findings of the cantonal court are binding. The appellant impermissibly relied on concepts of abuse of discretion and arbitrariness akin to public-law review, which cannot be imported into this procedure.