Mich. Comp. Laws § 433.14: Seizure and taking into custody or possession animal running at large; notice to law enforcement agency.

Sec. 4.

A law enforcement officer may seize and take into custody or possession any animal running at large in violation of this act.

A person may seize and take into custody or possession any animal found running at large or trespassing upon the premises owned or occupied by that person. A person who takes an animal into custody or possession pursuant to this subsection shall immediately notify a law enforcement agency of his action. The law enforcement agency shall promptly take custody or possession of the animal.