Sec. 4.5. (a) As used in this chapter, "law enforcement animal" means an animal that is owned or used by a law enforcement agency for the principal purposes of:
(1) aiding in:
(A) the detection of criminal activity;
(B) the enforcement of laws; and
(C) the apprehension of offenders; and
(2) ensuring the public welfare.
(b) The term includes, but is not limited to, the following:
(1) A horse.
(2) An arson investigation dog.
(3) A bomb detection dog.
(4) A narcotic detection dog.
(5) A patrol dog.