Section I: Provisions common to all defendants.

A third party may be impleaded for the purposes of condemnation by any party who is entitled to act against him as principal. He may also be impleaded by the party who has an interest therein in order to make the judgment common to him. The third party must be called in good time to put forward his defence.

The judge may invite the parties to put in evidence all interested parties whose presence he deems necessary for the resolution of the dispute. In non-contentious matters, he may order the putting in evidence of persons whose rights or burdens are likely to be affected by the decision to be taken.

The third party defendant is required to proceed in the court in which the original claim was brought, without being able to decline the territorial jurisdiction of that court, even by invoking a jurisdiction clause.