Legal Question in Family Law in Michigan

was the temporary custody done through a court? what was the language of the order? if it wasn't for a specific period of time, i.e., you were serving overseas, then you need to go through the court, and perhaps needs to if there is nothing in writing and cannot get your child back. I'm assuming something was in writing, otherwise her failure to return your child is considered kidnapping, since you have revoked your express permission for her to have custody of your child (same thing with a babysitter). Re-post your question with more details, including how the temporary custody was arranged, so you can get a more detailed answer.