Questão jurídica principal
Whether a debtor may challenge the creditor's standing in bill-of-exchange enforcement by complaint instead of raising opposition.
Decisão extraída
A challenge to the creditor's bill-of-exchange entitlement must be raised by opposition; the supervisory complaint is not the proper remedy.
Fundamentação extraída
The conditions for bill-of-exchange enforcement under Art. 177 SchKG are limited to formal prerequisites. The enforcement office does not decide the full substantive validity of the bill claim. Questions of the creditor's material entitlement are reserved to the judge and, as an objection arising from bill-of-exchange law, belong in the opposition procedure under Art. 182 no. 3 SchKG.