Article 121 of Code of Civil Procedure

The court may order the litigant who prevailed in the action to bear all or part of the costs if the right was admitted by the judgment debtor, or if the judgment creditor caused unnecessary costs to be incurred, or left his opponent unaware of decisive documents in the action that were in his possession or of the contents of those documents. Article 122 (2) If the action or the defense therein was intended solely to vex, compensation may be awarded against the person who so intended. The court that heard the vexatious action or defense shall have jurisdiction to hear this claim, which shall be brought before it by an incidental application or an original action, unless the claim, by reason of its value or nature, falls outside its jurisdiction.