> In practice, Border Patrol agents routinely ignore or misunderstand the limits of their legal authority in the course of individual stops, resulting in violations of the constitutional rights of innocent people. These problems are compounded by inadequate training for Border Patrol agents, a lack of oversight by CBP and the U.S. Department of Homeland Security, and the consistent failure of CBP to hold agents accountable for abuse. No matter what CBP officers and Border Patrol agents think, our Constitution applies throughout the United States, including within this “100-mile border zone.”
https://www.aclu.org/other/constitution-100-mile-border-zone
But then there's also this:
> In practice, Border Patrol agents routinely ignore or misunderstand the limits of their legal authority in the course of individual stops, resulting in violations of the constitutional rights of innocent people. These problems are compounded by inadequate training for Border Patrol agents, a lack of oversight by CBP and the U.S. Department of Homeland Security, and the consistent failure of CBP to hold agents accountable for abuse. No matter what CBP officers and Border Patrol agents think, our Constitution applies throughout the United States, including within this “100-mile border zone.”