Kuwait Court of Cassation principle number 4514

A release issued by a worker constitutes evidence against him; he may not rebut that evidence or free himself from it. The basis thereof: the worker’s right arises pursuant to mandatory rules relating to public order. The actual establishment of this right after the termination of the employment relationship is necessary. Establishment of his right to waive it or settle it, provided that his will is free from defects of consent. Example.