1、CRS Legal Sidebar Prepared for Members and Committees of Congress Legal SidebarLegal Sidebari i Immigration Laws Regulating the Admission and Exclusion of Aliens at the Border Updated July 21, 2020 Before the Coronavirus Disease 2019 (COVID-19) pandemic, the past few years had seen a marked increase
2、 in the number of apprehensions of non-U.S. nationals (aliens) at the border seeking to unlawfully enter the country. But entry restrictions at the U.S.-Mexico border in response to the COVID-19 pandemic have significantly reduced the number of alien apprehensions. Border closures and emergency meas
3、ures in other countries have also restricted the ability of some “migrant caravans” to reach the United States. Even so, there continues to be considerable attention concerning the treatment of aliens without legal immigration status who arrive at or near the U.S.-Mexico border. This Legal Sidebar b
4、riefly examines the laws generally governing the admission and exclusion of aliens at the border, including the procedures for asylum seekers and the circumstances in which arriving aliens may be detained. The Sidebar also addresses special rules for the treatment of unaccompanied alien children (UA
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