St. Louis appeals court ruling voiding ordinance requiring locked storage of guns left in parked cars

A city bid to curb firearm thefts from vehicles moves to the appellate courts

St. Louis is pressing a court fight over whether it can require gun owners to secure firearms left in unattended, parked vehicles. The dispute centers on a city ordinance adopted in 2017 that makes it unlawful to leave a firearm in an unattended motor vehicle unless it is stored in a locked container that is permanently affixed to the vehicle and not visible from outside.

The ordinance also created a separate requirement for owners or possessors to report a lost or stolen firearm to St. Louis police within 48 hours, along with identifying details such as serial number, make and model. Violations were subject to penalties of up to a $500 fine and up to 90 days in jail, with a provision barring a financial penalty for a first-time violation of the vehicle-lockup requirement.

How the case arose

The legal challenge was brought after a St. Louis resident reported a gun stolen from his car and was cited under the ordinance’s locked-container provision. Prosecutors later dropped that case, but the lawsuit argued the city could resume enforcement and that citations had been issued in other instances.

In July 2025, a St. Louis Circuit Court judge ruled the vehicle-storage requirement could not be enforced because it conflicts with Missouri’s firearms preemption statute. That state law, enacted in 2014, declares that the Missouri General Assembly occupies and preempts the field of legislation “touching in any way” firearms and related items, rendering local ordinances in that field “null and void,” subject to limited exceptions.

The competing legal arguments

City leaders have framed the vehicle-storage rule as a public-safety measure aimed at reducing gun thefts tied to car break-ins and limiting the flow of stolen guns into criminal activity. The ordinance itself cites findings about increasing motor-vehicle burglaries and thefts of firearms from unattended vehicles.

Opponents have argued that, regardless of the policy goal, the ordinance regulates the “keeping” or “possession” of firearms—areas the state legislature reserved to itself through preemption. In ruling against the city, the circuit judge concluded the vehicle-storage provision falls within the categories the state law prohibits local governments from regulating.

What remains at stake

The immediate practical effect of the 2025 ruling was to halt enforcement of the locked-container requirement for firearms left in unattended vehicles within city limits. The broader stakes extend beyond this single ordinance: the appeal tests how narrowly or broadly courts will interpret Missouri’s firearms preemption law when municipalities adopt measures focused on storage practices rather than outright bans on ownership or carrying.

• Core question on appeal: whether a local storage mandate is a prohibited regulation of firearm “keeping” or a permissible public-safety measure outside preempted categories.
• Operational issue for residents: what standards, if any, the city may impose on firearm storage in cars parked within St. Louis.
• Enforcement implications: whether municipal penalties can be used to deter theft-facilitating storage practices without conflicting with state law.

The case illustrates a recurring tension in Missouri: local officials seeking targeted responses to urban crime patterns, and statewide rules designed to maintain uniform firearm regulation across jurisdictions.

The next phase of the dispute will play out in the appellate courts, where the city will seek to revive its authority to regulate firearm storage in unattended vehicles under the ordinance adopted in 2017.