Civil Code (Cap. 16), article 569

569. (1) Where any such constructions, plantations, or works have been made by a third party in possession, with his own materials, the provisions relating to Possession under Title VI of Part I of Book Second of this Co de shall apply, regard being ha d as to whether such possessor was in good or bad faith. (2) If such third party was not a possessor within the meaning of article 524 the provisions contained in article 543 shall in all cases be applied. with materials belonging to others.