1. The court may not rule on its own motion on the non-admissibility of a claim; such ruling shall be made only upon a request by the debtor or by an interested party among the litigants. 2. The defence may be raised at any stage of the lawsuit, unless it is apparent from the circumstances that the person entitled to invoke it has expressly or impliedly waived it.
Interpretation and application must be checked against the official text and current version.