Mo. Rev. Stat. § 192.080
All powers and duties pertaining to administration of laws relating to food and drugs shall be exercised by the department of health and senior services. The director of health and senior services may appoint a deputy who, under the director, shall be chiefly responsible for administration of laws pertaining to food and drugs, and particularly to enforce all laws that now exist or that may hereafter be enacted regarding the production, manufacture or sale of any food products, or any ingredients that are used in the preparation of foodstuffs, or the misbranding of the same; and personally, or by his assistants, inspect any article of food or drug made or offered for sale in this state which he may, through himself or his assistants, suspect or have reason to believe is impure, unhealthful, adulterated or misbranded, and shall have power to cause to be arrested and prosecuted, any person or persons engaged in the manufacture or sale of foods or drugs or any food ingredients contrary to the laws of this state. The director shall make orders and findings for carrying out the provisions of this chapter and such orders and findings shall conform as nearly as practicable to the orders and findings at present established or which may hereafter be established for the enforcement of the act of congress, approved and known as "The Food and Drug Act", together with any amendments thereto.
§ 192.080, RSMo