A. 
A person is guilty of animal neglect when he or she has custody or ownership or both of an animal and fails to provide adequate care or adequate control, which results in substantial harm to the animal.
B. 
A person is guilty of abandonment when he or she has knowingly abandoned an animal in any place without making provisions for its adequate care.
C. 
Animal neglect and abandonment is, upon first (1st) conviction and for each offense, punishable by imprisonment or a fine not to exceed five hundred dollars ($500.00), or both, and upon the second (2nd) and subsequent convictions, an ordinance violation punishable by imprisonment or a fine not to exceed one thousand dollars ($1,000.00), or both. All fines and penalties for a first (1st) conviction of animal neglect or abandonment may be waived by the court provided that the person found guilty of animal neglect or abandonment shows that adequate, permanent remedies for the neglect or abandonment have been made. Reasonable costs incurred for the care and maintenance of neglected or abandoned animals may not be waived. This Section shall not apply to the provisions of Section 578.007, RSMo.
D. 
In addition to any other penalty imposed by this Section, the court may order a person found guilty of animal neglect or abandonment to pay all reasonable costs and expenses necessary for:
1. 
The care and maintenance of neglected or abandoned animals within the person's custody or ownership;
2. 
The disposal of any dead or diseased animals within the person's custody or ownership;
3. 
The reduction of resulting organic debris affecting the immediate area of the neglect or abandonment; and
4. 
The avoidance or minimization of any public health risks created by the neglect or abandonment of the animals.
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State Law Reference — Similar provisions, §578.009, RSMo.
A. 
A person is guilty of animal abuse when a person:
1. 
Intentionally or purposely kills an animal in any manner not allowed by or expressly exempted from the provisions of Sections 578.005 to 578.023 and 273.030, RSMo.;
2. 
Purposely or intentionally causes injury or suffering to an animal; or
3. 
Having ownership or custody of an animal knowingly fails to provide adequate care or adequate control.
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Note — Under certain circumstances this offense can be a felony under state law.
A. 
A person commits the offense of knowingly releasing an animal if that person, acting without the consent of the owner or custodian of an animal, intentionally releases any animal that is lawfully confined for the purpose of companionship or protection of persons or property or for recreation, exhibition or educational purposes.
B. 
As used in this Section, "animal" means every living creature, domesticated or wild, but not including Homo sapiens.
C. 
The provisions of this Section shall not apply to a public servant acting in the course of such servant's official duties.
No person may keep any lion, tiger, leopard, ocelot, jaguar, cheetah, margay, mountain lion, Canada lynx, bobcat, jaguarundi, hyena, wolf, bear, non-human primate, coyote, any deadly, dangerous, or poisonous reptile, or any deadly or dangerous reptile over eight (8) feet long, in any place other than a properly maintained zoological park, circus, scientific, or educational institution, research laboratory, veterinary hospital, or animal refuge.