Mo. Rev. Stat. § 610.103

Notwithstanding any other provision of law to the contrary, whenever a criminal background check is requested in connection with gaining employment, housing or any other services or benefit of any homeless former member of the organized militia or the Armed Forces of the United States who has been honorably discharged, such background check shall be completed and transmitted to the requesting party without any fee or other compensation for such background check or copy of any relevant public record pertaining to such request. For purposes of this section "homeless" means an involuntary state characterized by a lack of housing or shelter.