Mo. Rev. Stat. § 196.035
It shall be the duty of the prosecuting attorney in any county or city in the state, when called upon by the department of health and senior services, or any of its assistants, to render any legal assistance in his power to execute the laws and to prosecute cases rising under the provisions of sections 196.010 to 196.120. Before any violation of sections 196.010 to 196.120 is reported to any such attorney for the institution of a criminal proceeding, the person against whom such proceeding is contemplated shall be given appropriate notice and an opportunity to present his views before the department of health and senior services or its designated agent, either orally or in writing, in person, or by attorney, with regard to such contemplated proceeding. The court at any time after seizure up to a reasonable time before trial, shall, by order allow any party to a condemnation proceeding, his attorney or agent, to obtain a representative sample of the article seized, and as regards fresh fruit or vegetables, a true copy of the analysis on which the proceeding is based and the identifying marks or numbers, if any, of the packages from which the samples analyses were obtained.
§ 196.035, RSMo