my wife filed a emergency temporary custody order stating that I would not return the children.at the time the papers were filed she already had the children.can I press charges for falsifying documents and what are the penalties.
You can't press charges. You can report to the police. Only the prosecutor makes the charging decision and only he can drop the case. What your wife did is part of the give and take of a divorce unfortunately and your best course is to try to convince the judge she lied.