Supreme Court dismisses appeal in labor dispute where a third party performed duties under a contract for services.

The Supreme Court dismissed the plaintiff's cassation appeal regarding a labor relationship dispute. The lower court found that while the plaintiff signed a contract for services, his father actually performed the insemination duties under the employer's supervision. The court ruled that the personal nature of work under a labor contract prohibits delegating tasks to a third party, unlike contracts for services which allow such delegation with consent.