Can the police in Illinois make a 17-year-old come home?

It depends upon the situation, if the parents file a missing persons or runaway report, the police will begin looking for the minor. This is done due to the AMBER Alert law, and other laws that have been enacted in the past few years. Authorities have no way of knowing if the minor left of their own free will or has been taken forcibly. In cases where a minor has left on their own and the parents know where he or she is, they can petition the court for a requisition order to have the minor returned to their custody. This does not apply if a minor leaves the custodial parent's home to live with the non-custodial parent; in such a situation the non-custodial must notify the other parent and/or authorities that the minor child is with them.