[20200221]IF11438_“避难所”管辖区：政策概述.pdf

https:/crsreports.congress.gov February 21, 2020“Sanctuary” Jurisdictions: Policy OverviewOverview Jurisdictions with “sanctuary” policies have been controversial for decades, highlighting a tension between federal agencies charged with immigration enforcement, and states and localities (e.g., counties, cities) that limit their cooperation in this regard. The prominence of immigration enforcement for the Trump Administration, and the publicity surrounding certain crimes committed by some non-U.S. nationals (in statute, “aliens”), particularly those without legal immigration status, have reignited debates over appropriate levels of immigration enforcement within the United States. In 2017, President Trump issued Executive Order 13768 (EO), which included provisions that aim to deter certain “sanctuary” policies and promote cooperation with federal immigration enforcement agencies. Who handles immigration enforcement? The Department of Homeland Security (DHS) is the primary federal agency responsible for immigration enforcement. Within DHS, Customs and Border Protection (CBP) primarily handles immigration enforcement at U.S. borders and ports of entry, and Immigration and Customs En