537.037 R.S.Mo. 2
Good Samaritan Law: Person Trainined in First Aid
An individual trained in first aid, who, without compensation, provides emergency care to the level for which they have been trained at the scene of an emergency, will not be held legally responsible for acting or failing to act. They can be held legally responsible if acting with extreme carelessness or intent to cause harm. This section does not include physicians, registered nurses, practical nurses, or EMTs. Generally, Good Samaritan laws only offer protection for those individuals who provide care during spontaneous emergencies unrelated to volunteer deployment.
Emergency care, no civil liability, exceptions (Good Samaritan law)
2. Any other person who has been trained to provide first aid in a standard recognized training program may, without compensation, render emergency care or assistance to the level for which he or she has been trained, at the scene of an emergency or accident, and shall not be liable for civil damages for acts or omissions other than damages occasioned by gross negligence or by willful or wanton acts or omissions by such person in rendering such emergency care.