Court held that Article 68 of the Road Code requires a summons to demand, not main intervention, for joint liability.

The Supreme Court of Justice dismissed the appeal regarding the proper procedural mechanism for joining parties in road accident cases. The plaintiff sought main intervention to include all jointly liable responsible parties, while the defendant argued that a summons to demand under Article 68 of the Road Code is the exclusive correct procedure. The court ruled that the specific statutory language mandates a summons to demand rather than main intervention for this particular type of action.