Questione giuridica chiave
Whether the Federal Supreme Court could itself order definitive mainlevée despite a public-law appeal limited to arbitrariness.
Decisione estratta
No; because the appeal relied exclusively on arbitrariness, the Federal Supreme Court could only annul the cantonal decision, not grant mainlevée itself.
Motivazione estratta
A public-law appeal is cassatory in nature. An exception allowing the court to decide the merits does not apply when only Art. 9 Cst. is invoked.