705. If the registrar cannot, from the books in his office, ascertain what persons were owners of the immoveable during the ten years which preceded the sale, he must make enquiries. The persons whom he consults are bound to give him, in writing and under oath, such information as they possess. The registrar must mention such inquiries in his certificate and attach to it the depositions taken.
1965 (1st sess.), c. 80, a. 705.