Social security court must verify all mandatory insurance conditions, not just those in the agency decision.

The Supreme Court quashed the appellate court's decision which limited its review to the legal grounds cited in the social security agency's ruling. The applicant, a lawyer and company vice-president, argued she was not subject to mandatory social insurance due to family ties and unpaid remuneration for her role. The court held that social security courts have a duty to independently verify all conditions for mandatory insurance, including potential employment contract validity and family relationship criteria, rather than relying solely on the agency's decision.