Colorado Revised Statutes Title 13. Courts and Court Procedure § 13-25-137. Admissibility of commercial packaging

(1) Labels or packages listing, indicating, or describing the contents or ingredients of any commercially packaged item are admissible in evidence to prove that the item contains the contents or ingredients listed on the label or package. A label or package listing that identifies the contents or ingredients of a container or package constitutes prima facie evidence that the items in the container or package were composed in whole or in part of the contents.

(2) Prior to the admission of evidence pursuant to this section, the court shall make a preliminary determination as to whether the item constitutes a commercially packaged item as described in subsection (1) of this section. This determination may include any evidence the court deems appropriate, including but not limited to evidence of where the item is available for purchase, whether the item is subject to state or federal regulation, or any other evidence observable on the package that indicates or constitutes indicia of the label's or package's reliability. Extrinsic evidence that an item is commercially packaged is not a prerequisite to the court's determination.