Mo. Rev. Stat. § 196.590

The state milk board * may for good cause, after notice and opportunity for hearing in accordance with the provisions of chapter 536, suspend or revoke certifications and licenses issued hereunder; provided, that nothing in sections 196.520 to 196.610 shall be construed to prevent the temporary suspension of the operation of any production or manufacturing facility prior to a hearing when such action is necessary to stop the production, distribution, purchase or sale of illegal milk or illegal dairy products.