We've had recent discussions on the ABA Family Law Listserv about how best
to guarantee that there are no glitches when a parent is traveling abroad with minor children and the other parent is not also traveling. The New York Times has published a helpful article discussing the issues and good suggestions for ensuring travel that doesn't involve border stops. The article, Practical Traveler: Stroller, Diapers, Paperwork may be read here.
Spring Break is fast arriving. Parents traveling to Mexico are usually required to present a notarized document from the other parent that will state with fair precision the knowledge of the trip, the expected departure and return dates, etc. An affidavit for parents to use that will facilitate border crossings can be found here.
You'll find many other valuable resources on my website http://parental-kidnapping.com. If your child is missing, please contact me to see if I can assist you or your attorney in recovery. I've consulted in many interstate parental kidnappings -- 7 in the past 12 months alone -- and can walk your attorney through the process even if Michigan is not one of the states involved. You can email me firstname.lastname@example.org or call me at 231-223-7864 or 231-649-2140.