Mo. Rev. Stat. § 106.230

106.230. Complaint against officer — duty of prosecuting attorney. — When any person has knowledge that any official mentioned in section 106.220 has failed, personally, to devote his time to the performance of the duties of such office, or has been guilty of any willful, corrupt or fraudulent violations or neglect of any official duty, or has knowingly or willfully failed or refused to perform any official act or duty which by law it was his duty to do or perform with respect to the execution or enforcement of the criminal laws of this state, he may make his affidavit before any person authorized to administer oaths, setting forth the facts constituting such offense and file the same with the clerk of the court having jurisdiction of the offense, for the use of the prosecuting attorney or deposit it with the prosecuting attorney, furnishing also the names of witnesses who have knowledge of the facts constituting such offense; and it shall be the duty of the prosecuting attorney, if, in his opinion, the facts stated in said affidavit justify the prosecution of the official charged, to file a complaint in the circuit court as soon as practicable upon such affidavit, setting forth in plain and concise language the charge against such official, or the prosecuting attorney may file such complaint against such official upon his official oath and upon his own affidavit.

(RSMo 1939 § 12829) Prior revisions: 1929 § 11203; 1919 § 9176; 1909 § 10205