ACLU – Know your rights – The Fourth Amendment of the U.S. Constitution protects people from random and arbitrary stops and searches. Although the federal government claims the power to conduct certain kinds of warrantless stops within 100 miles of the U.S. border, important Fourth Amendment protections still apply.

Select a scenario:

• Are immigration officials allowed to stop people in places wholly inside the U.S.?
• What is a “reasonable distance”?
• Are there limitations to immigration officials’ power?
• How does this work in real life?: CBP on Buses and Trains
• How does this work in real life?: CBP at Immigration Checkpoints
• How does this work in real life?: CBP Roving Patrols

Related Know Your Rights:

• Know your rights at actual border crossings, including international airports in the U.S.