Supreme Court allows rural pension claim by recognizing past social insurance periods as acquired rights.

The Supreme Court of Poland revoked the lower court's dismissal of Anna M.'s rural pension claim and remanded the case for further fact-finding. The lower court incorrectly denied the pension because the applicant was not actively insured in rural insurance at the time of filing or the new law's enactment. The Court ruled that periods of mandatory social insurance, regardless of the specific legal basis, constitute acquired rights that cannot be erased, thereby establishing eligibility based on past contributions. Consequently, the case was sent back to the district court to verify the specific duration of her prior agricultural work and social insurance payments.