Michigan Compiled Laws, Chapters 760 to 777 Code of Criminal Procedure § 764.21

Sec. 21.A private person, when making an arrest for a felony committed in his or her presence, or a peace officer or federal law enforcement officer, when making an arrest with a warrant or when making a felony arrest without a warrant as authorized by law, may break open an inner or outer door of a building in which the person to be arrested is located or is reasonably believed to be located if, after announcing his or her purpose, he or she is refused admittance.