This is an answer provided by the St. Clair, Michigan website on citizens arrest:
Been that way a long time in Michigan.
In Michigan the statutory acceptable militia is organized as the Michigan Emergency Volunteers. The unregulated militias in Michigan are defined the same way as in our U.S. constitution for the most part IIRC.
In Michigan, a private citizen may make an arrest when they witness a felony committed in their presence. This is often called a “citizen's arrest.” Under Michigan law, a police officer may not arrest an individual who commits a misdemeanor unless he or she witnessed the criminal act.
Under the law, an officer may arrest on a misdemeanor without a warrant. In order to arrest and prosecute a person who committed a misdemeanor, an individual must witness the act and be willing to “sign the complaint (citation)".
Been that way a long time in Michigan.
In Michigan the statutory acceptable militia is organized as the Michigan Emergency Volunteers. The unregulated militias in Michigan are defined the same way as in our U.S. constitution for the most part IIRC.