Mo. Rev. Stat. § 198.180

During any investigation under sections 198.139 to 198.186, the director of the fraud investigation division shall have the right to audit and to inspect the records of any health care provider or vendor. If the health care provider or vendor refuses to allow such audit or inspection or if there is reason to believe that the records are in danger of being destroyed, altered or secreted, the director of the fraud investigation division may make written application under oath to any court in the county where the records in question are being kept, or in Cole County, and if the judge shall be satisfied that there is reasonable cause for the audit or inspection or reasonable cause to believe that the records are in danger of being destroyed, altered or secreted, he shall issue a warrant to search for and seize such records.