If they do not, then talk with any investigator at the D.A. 's office. The missing Children's Act of 1982 instructs law enforcement and allows missing children to be entered into this system. Request that it be done nationwide. If your child is a victim of parental abduction make sure to have all of your custody papers in order and if you do not have custody, go through the appropriate legal channels to do so immediately. Immediately begin to keep a log and diary of all and any activity that happens and transpires.
Documentation is very important from the very beginning.
Make sure that the reporting police agency issues a warrant and get a copy of it. It would either be a felony warrant on a state level or, in a federal situation, it would be a UFAP warrant which is Unlawful Flight to Avoid Prosecution. Contact any and all of the non-profit missing children entities and agencies. Even if there are some in your state, contact all of the national ones as well. They will also help you in processing information on getting the word out, plus they will gladly assist in helping with a flyer or poster.