Michigan Compiled Laws, Chapter 722. Children § 722.1204

Sec. 204. (1) A court of this state has temporary emergency jurisdiction if the child is present in this state and the child has been abandoned or it is necessary in an emergency to protect the child because the child, or a sibling or parent of the child, is subjected to or threatened with mistreatment or abuse.

(2) If there is no previous child-custody determination that is entitled to be enforced under this act and if a child-custody proceeding has not been commenced in a court of a state having jurisdiction under sections 201 to 203,  1 a child-custody determination made under this section remains in effect until an order is obtained from a court of a state having jurisdiction under sections 201 to 203. If a child-custody proceeding has not been or is not commenced in a court of a state having jurisdiction under sections 201 to 203, a child-custody determination made under this section becomes a final child-custody determination, if that is what the determination provides and this state becomes the home state of the child.

(3) If there is a previous child-custody determination that is entitled to be enforced under this act or if a child-custody proceeding has been commenced in a court of a state having jurisdiction under sections 201 to 203, an order issued by a court of this state under this section must specify in the order a period of time that the court considers adequate to allow the person seeking an order to obtain an order from the state having jurisdiction under sections 201 to 203. The order issued in this state remains in effect until an order is obtained from the other state within the period specified or the period expires.

(4) If a court of this state that has been asked to make a child-custody determination under this section is informed that a child-custody proceeding has been commenced in, or that a child-custody determination has been made by, a court of a state having jurisdiction under sections 201 to 203, the court of this state shall immediately communicate with the other court. If a court of this state that is exercising jurisdiction under sections 201 to 203 is informed that a child-custody proceeding has been commenced in, or a child-custody determination has been made by, a court of another state under a statute similar to this section, the court of this state shall immediately communicate with the court of the other state. The purpose of a communication under this subsection is to resolve the emergency, protect the safety of the parties and the child, and determine a period for the duration of the temporary order.