La. R.S. 15:571

When the sentence shall have been executed, the warden of the Louisiana State Penitentiary at Angola, or his deputy performing the execution, shall make a proces verbal of said execution immediately thereafter, which proces verbal shall recite the manner and date of said execution and shall be attested by said warden, or his deputy, and by all of the witnesses, and said proces verbal, when so signed, shall be filed with the clerk of court of the parish in which the sentence shall have been imposed.