Mo. Rev. Stat. § 571.093: Certain records closed to the public.

If any sheriff retains records of permits to obtain concealable firearms issued under former section 571.090, as repealed by senate bills nos. 62 and 41 of the ninety-fourth general assembly, then such records shall be closed to the public. No such record shall be made available for any purpose whatsoever unless its disclosure is mandated by a valid court order relating to a criminal investigation.