815 ILCS 395/8
Current through Public Act 103-1052
In any action relating to the enforcement of any provision of this Act a certificate duly issued by an assay office of the Treasury Department of the United States certifying the weight of any article, or any part thereof, or of the kind, weight, quality, fineness, or quantity of any ingredient thereof, shall be receivable in evidence as constituting prima facie proof of the matter or matters so certified.
815 ILCS 395/8