Section 578.608 - Animal may be killed, when, by whom - immunity from liability, when - trespass by animal, when1. A law enforcement officer or other person may kill a large carnivore if such officer or person observes or has reason to believe that the large carnivore is chasing, attacking, injuring, or killing:(1) A human being, whether the large carnivore is contained in or is outside of its enclosure;(4) A mammalian pet, only if the large carnivore is outside of its enclosure.2. No law enforcement officer, animal control officer, or person shall be held civilly liable for damages or otherwise for killing or attempting to kill a large carnivore under subsection 1 of this section.3. A large carnivore's entry onto a field or enclosure that is owned by or leased by a person producing livestock or poultry constitutes a trespass, and the person who owns or possesses the large carnivore is liable in damages.