1. Every person has the right to enter freely into any contract subject to such conditions, limitations or restrictions as are laid down by the general principles of the law of contract. A law shall provide for the prevention of exploitation by persons who are commanding economic power.
2. A law may provide for collective labour contracts of obligatory fulfilment by employers and workers with adequate protection of the rights of any person, whether or not represented at the conclusion of such contract. Article 27
1. The right to strike is recognised and its exercise may be regulated by law for the purposes only of safeguarding the security of the Republic or the constitutional order or the public order or the public safety or the maintenance of supplies and services essential to the life of the inhabitants or the protection of the rights and liberties guaranteed by this Constitution to any person.
2. The members of the armed forces, of the police and of the gendarmerie shall not have the right to strike. A law may extend such prohibition to the members of the public service.