Source: American Civil Liberties Union
*If you are trying to enter the US and being detained because of the ban issued, you should not sign anything you are asked to sign. You should ask for legal representation. You have the right to a lawyer and there are reportedly lawyers waiting at airports across the United States to help people being detained.*
Q: If I believe that customs or airport agents or airline employees singled me out because of my race, ethnicity, or religion or that I was mistreated in other ways, what information should I record during and after the incident?
A: It is important to record the details of the incident while they are fresh in your mind. When documenting the sequence of events, be sure to note the airport, airline, flight number, the names and badge numbers of any law enforcement officers involved. Also try to document information on any airline or airport personnel involved, questions asked in any interrogation, stated reason for treatment, types of searches conducted, and length and conditions of detention.
When possible, it is helpful to have a witness to the incident. If you have been mistreated or singled out at the airport based on your race, ethnicity or religion, you can make a complaint. It is best if you do not sign anything, especially a Form I-407 if the person is a permanent resident. DO NOT LIE to the officer. Take contemporaneous notes on any scrap of paper as to how long waiting, and what questions are being asked – especially any questions about religious observation, political views. Be prepared to provide names and phone numbers of people who were visited overseas, and have another family member call those people overseas to tell them to perhaps expect a call from a US government official to verify that information. Remain calm and do not cause a scene.