Social security administrative decision lacks res judicata status under Polish Civil Procedure Code Article 366.

The Supreme Court dismissed the cassation appeal filed by a miner against a final administrative decision denying his mining pension. The applicant argued that subsequent administrative proceedings and the court case regarding the pension denial were invalid because they touched upon a matter already finally decided. The court clarified that administrative decisions do not possess the quality of res judicata under Article 366 of the Civil Procedure Code and therefore cannot render judicial proceedings void. Consequently, the court held that the cassation complaint was inadmissible as it did not meet the statutory requirements for challenging the specific administrative act.