Trade union collective interest cannot be equated to its own legal interest under Art. 189 KPC.

The Supreme Court dismissed the cassation appeal filed by trade unions against a labor court ruling. The unions sought a general declaration of legality regarding mandatory psychological tests for bus drivers without identifying specific employees. The court held that a trade union's legal standing under Article 189 of the Civil Procedure Code requires a concrete legal interest on behalf of specifically named workers, not an abstract collective interest.