Mo. Rev. Stat. § 195.042
All complaints, investigatory reports, and information pertaining to any applicant, registrant or individual are confidential and shall only be disclosed upon written consent of the person whose records are involved or to other administrative or law enforcement agencies acting within the scope of their statutory authority. However, no applicant, registrant or individual shall have access to any complaints, investigatory reports or information concerning an investigation in progress until such time as the investigation has been completed. Information regarding identity, including names and addresses, registration, final disciplinary action taken and currency of the registration of the persons possessing registrations to conduct activities involving controlled substances and the names and addresses of the applicants shall not be confidential. This section shall not be construed to authorize the release of records, reports or other information which may be held in department files for any registrant or applicant which are subject to other specific state or federal laws concerning their disclosure.
§ 195.042, RSMo