Missouri Revised Statutes Title XXXVIII. Crimes and Punishment; Peace Officers and Public Defenders § 571.121. Duty to carry and display permit, penalty for violation--director of revenue immunity from liability, when

1. Any person issued a concealed carry permit pursuant to sections 571.101 to 571.121, or a concealed carry endorsement issued prior to August 28, 2013, shall carry the concealed carry permit or endorsement at all times the person is carrying a concealed firearm and shall display the concealed carry permit and a state or federal government-issued photo identification or the endorsement or permit upon the request of any peace officer. Failure to comply with this subsection shall not be a criminal offense but the concealed carry permit or endorsement holder may be issued a citation for an amount not to exceed thirty-five dollars.

2. Notwithstanding any other provisions of law, the director of revenue, by carrying out his or her requirement to issue a driver's or nondriver's license reflecting that a concealed carry permit has been granted under the law as it existed prior to August 28, 2013, shall bear no liability and shall be immune from any claims for damages resulting from any determination made regarding the qualification of any person for such permit or for any actions stemming from the conduct of any person issued such a permit. By issuing the permit on the driver's or nondriver's license, the director of revenue was merely acting as a scrivener for any determination made by the sheriff that the person was qualified for the permit.