COVID-19 has made one thing clear; when law enforcement cooperates with ICE this has dire public health implications. There have been renewed and urgent efforts to stop this cooperation, including a recently filed lawsuit California Attorneys for Criminal Justice, et al. v. Gavin Newsom, California Governor, et al., challenging the transfer of people from state and local custody to ICE in the midst of COVID-19. Ten current and former district attorneys and police chiefs from across California filed an amicus curiae letter brief in support of this lawsuit.  This letter brief was authored and organized by Fair and Just Prosecution, Immigrant Legal Resource Center, and Pillsbury Winthrop Shaw Pittman LLP.