(a) In this section:
(1) "Dispatch" means to kill by any humane method.
(2) "Game animal" has the meaning assigned by Section 63.001.
(3) "Game bird" has the meaning assigned by Section 64.001.
(b) It is a defense to prosecution for a violation of this chapter or of a regulation adopted or proclamation issued under the authority of this chapter by the commission that the actor dispatched a game animal or game bird that:
(1) was mortally wounded, not through the actor's conduct; or
(2) behaved in a manner that:
(A) is inconsistent with the manner in which a game animal or game bird that is not diseased typically behaves; and
(B) leads a reasonable person to believe that the game animal or game bird poses a substantial risk of serious harm to itself, a person, or other wildlife.
(c) The commission may adopt rules, including rules concerning the disposition of a game animal or a game bird that has been dispatched under this section, to implement this section.