Sanctuary Cities Freed Tens Of Thousands Of Criminal Aliens Wanted By ICE During Biden Era, Data Shows

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Sanctuary jurisdictions have freed tens of thousands of criminal migrants during President Joe Biden’s time in the White House, federal law enforcement data show.

Sanctuary cities and other localities across the U.S. have freed more than 22,000 criminal migrants wanted by federal immigration authorities since January 2021, according to data from Immigration and Customs Enforcement (ICE) obtained by the Center for Immigration Studies (CIS). The numbers pertain to ICE detainer requests ignored by local law enforcement agencies, instances when the enforcement agency provided insufficient notice to ICE or early releases of migrants subjected to detainer requests.

Immigration detainers are submitted to local law enforcement agencies after they take custody of a non-citizen — typically on criminal charges unrelated to immigration violations — that ICE suspects to be living in the U.S. unlawfully. These detainers ask the enforcement agency to hold on to the non-citizen long enough for an ICE agent to arrive and make an apprehension on-site.

However, countless localities have passed laws that strictly forbid their law enforcement from cooperating with ICE, which would include honoring immigration detainers. The data published by CIS suggests that sanctuary cities increasingly ignored detainer requests under the Biden-Harris administration, meaning more criminal migrants were released back into the community over the years.

There were 2,512 declined detainers in fiscal year 2021, beginning when Biden assumed office on January 20, 2021, according to the ICE data. There were 5,723 declined detainers in fiscal year 2022, 7,934 declined detainers in fiscal year 2023 and 5,871 declined detainers in fiscal year 2024 only up to the middle of July.