Supreme Court allows cassation appeal to examine validity of will declaration under Civil Code provisions.

The Supreme Court accepted the cassation appeal filed by the plaintiff against the appellate court's judgment. The core dispute involves the plaintiff's request to compel the defendant to submit a formal declaration of will, with arguments centered on the procedural requirements and substantive validity of such declarations under Polish law. The court decided to refer the case for further examination rather than issuing a final ruling on the merits, indicating that the lower court's decision requires review regarding the specific legal grounds for the declaration.