Mo. Rev. Stat. ยง 577.300
577.300 Leaving a child unattended in a motor vehicle โ first and second degree โ ...
577.300. Leaving a child unattended in a motor vehicle โ first and second degree โ penalties. โ 1. As used in this section, the following terms mean:
(1) "Collision" , the act of a motor vehicle coming into contact with an object or a person;
(2) "Injures" , to cause physical harm to the body of a person;
(3) "Motor vehicle" , any automobile, truck, truck-tractor, or any motor bus or motor-propelled vehicle not exclusively operated or driven on fixed rails or tracks;
(4) "Unattended" , not accompanied by an individual fourteen years of age or older.
2. A person commits the offense of leaving a child unattended in a motor vehicle in the first degree if such person knowingly leaves a child less than eleven years of age unattended in a motor vehicle and such child fatally injures another person by causing a motor vehicle collision or by causing the motor vehicle to fatally injure a pedestrian.
3. Leaving a child unattended in a motor vehicle in the first degree is a class C felony.
4. A person commits the offense of leaving a child unattended in a motor vehicle in the second degree if such person knowingly leaves a child less than eleven years of age unattended in a motor vehicle and such child injures another person by causing a motor vehicle collision or by causing the motor vehicle to injure a pedestrian.
5. The offense of leaving a child unattended in a motor vehicle in the second degree is a class A misdemeanor.
(L. 2000 S.B. 757 & 602, A.L. 2014 S.B. 491) Transferred 2014; formerly 568.052; Effective 1-01-17