Mich. Comp. Laws § 42.21a

Sec. 21a. If a person has committed a civil infraction violation under the Michigan vehicle code, Act No. 300 of the Public Acts of 1949, being sections 257.1 to 257.923 of the Michigan Compiled Laws, within a charter township, or has committed or is suspected of having committed any crime within a charter township, or has escaped from any prison or jail in the charter township, the police officers of that charter township shall have the same right to pursue, arrest, and detain the person outside of the charter township limits as does the sheriff of the county.