You need to interview a number of atty's , You will find some one that is knowledgeable and capable to help. Only from the scuttle I have heard while at My atty's office , I believe that You need to go file for custody , Where Juridiction is , Or just go to the place where your son is and file an ex parte order Saying you get custody , What I do know is that You have a few problems , One will be fileing in the proper jurisdiction , The other locating your son , The next will be getting the court to believe your story , Usually there is a Guardian Ad Litem Appointed , And the Guardian ad Litem Will have to be the one that reports to the court , the Judge won't be likely to Just believe your story . So there will have to be a court date , Mom or the persion with custody will have to be served with the right papers ,She will have the oppurtunity to show Up at court , And Her custody filing should be public record And have her address on it , when I suggest several things that I have read and seen happen , I will keep it to the point , Call these people or go there and ask for low cost legal help ,With pen and paper in hand always ,
Try going to child support [Wash state] they have low cost legal help Pamphlets ask for them In your state . Call every number ask, be patient
Go or call the court and ask if there is a night when atty's help people pro se ,
Or a list of atty;s that help people with low income
Call the BAR association in you state ask for low cost atty's . or pro se / pro bono Help
Call Child protective services , If you really believe Your son is in danger , And ask what they can do ,
Go get your son and bring him back , I suggest asking an atty , they won't be likely to Advise this . But If You have good reasons to believe that your son is in danger ,, There is a fine line between negligence on your part , And Gettting your self in trouble ,
Finally there is so much BS that goes on in child custody cases that You have Document every piece of evidence You can , That really means police reports , What ever is proof , You Need real legal advice , I'm just giving you Ideas ,the court will have to see pretty good evidance to do what you want them to , But then again if you file for custody and or a parenting plan and it gets filed then You have legal recourse for her taking the child away with out notification . This about the Uniform Child Custody act ,. l It say's there must be a parenting plan ,It states that the moving parent must give notice of where they are moving by court order ,You need to get an order filed so you can proceed with contempt for her leaving the area and not giving a forward address. I really hope this gives you some good Ideas , I admit I know very little about Your problem , But I do know in order for you to get any legal advantage there at least needs to be Parenting plan filed and accepted by the court ,you need legal advice