(a) A person commits the crime of cruelty to animals if, except as otherwise authorized by law, he intentionally or recklessly:
(1) Subjects any animal to cruel mistreatment; or
(2) Subjects any animal in his custody to cruel neglect; or
(3) Kills or injures without good cause any animal belonging to another.
(b) Cruelty to animals is a Class B misdemeanor.