More than 100 public defenders walked out and staged a protest at the Bronx Criminal Court in New York City after an undocumented client was detained by federal immigration agents as he left the courthouse, giving credence to advocates’ claims that fear of deportation keeps victims and witnesses from participating in the legal system.

“As public defenders responsible for providing critical legal representation to hundreds of thousands of people across our city each year, we have watched Immigration and Customs Enforcement officials turn New York City’s courthouses into immigration enforcement zones,” the Legal Aid Society said. “The presence of ICE officers in our courthouses and the perception that no immigrant is safe to seek their day in court, is threatening to upend our entire legal process and the principles upon which it stands.”

The legal services nonprofit shared videos from outside the courthouse on Thursday:

Casey Dalporto, a Legal Aid Society staff attorney, told the New York Law Journal that undocumented clients are “terrified to come to court,” and public defenders—who held a similar protest outside a Brooklyn courthouse in November—are “just fed up” with the ICE arrests.