Questione giuridica chiave
Whether the nullity appeal was admissible against the cantonal cassation decision despite its interlocutory character
Decisione estratta
Yes; the decision definitively resolved points of federal law and was therefore amenable to nullity appeal.
Motivazione estratta
A cantonal last-instance decision is appealable when it finally decides a determinative question of federal law, even if the case is remitted on other points.