La. R.S. 15:500

In all criminal cases; and in all cases in juvenile court; or in all family courts which are of a criminal nature, and in civil forfeiture proceedings arising from criminal activity, the courts of this state shall receive as evidence any certificate made in accordance with R.S. 15:499 subject to the conditions contained in this Section and R.S. 15:501. The certificate shall be received in evidence as prima facie proof of the facts shown thereon, and as prima facie proof of proper custody of the physical evidence listed thereon from time of delivery of the evidence to the facility until its removal therefrom.