Questione giuridica chiave
Whether the attachment opposition decision could be challenged by civil law appeal and under what federal review standard
Decisione estratta
The decision was appealable in civil matters, but review was limited to constitutional violations because it concerned provisional measures.
Motivazione estratta
An attachment-opposition decision by the superior judicial authority is a final cantonal decision under the LTF; as a provisional measure, it may only be attacked for constitutional violations, which must be specifically invoked and reasoned.