Greater Boston Legal Services et al. v. Mullin

Case Overview

This lawsuit challenges the federal government’s new policy of hiding the locations of thousands of people detained by U.S. Immigration and Customs Enforcement. The policy unlawfully interferes with communication between detainees, their families, and their lawyers.

On October 28, 2026, the National Immigration Law Center, National Immigration Project, the American Civil Liberties Union, the ACLU of Massachusetts, and Annelise Araujo Law filed the complaint in the U.S. District Court for the District of Massachusetts on behalf of Greater Boston Legal Services, Rian Immigrant Center, Florence Immigrant and Refugee Rights Project, and Amica Center for Immigrant Rights. The groups argue the new policy unlawfully blocks them from locating, communicating with, and providing legal services to their clients and potential clients.

For over 16 years, the U.S. Department of Homeland Security has made the location of detained noncitizens available via its Online Detainee Locator System. In September, DHS abruptly changed course and stopped sharing the location of detained people with final orders of removal, either via the locator service or in direct response to queries from family members or attorneys. This policy of mass disappearance has thrown thousands into an administrative black box without any justification.

The new policy facilitates the Trump administration’s mass deportation campaign by making it more difficult to provide detainees with access to attorneys and the judicial system — and thus more difficult to challenge unlawful detention and pursue lawful pathways to remain in the United States. Noncitizens with final orders of removal may still pursue a number of legal remedies to challenge their detention and deportation — but if they cannot access legal counsel or the courts, they may never have a chance to seek these remedies before they are deported.

The lawsuit alleges that ICE’s implementation of this new policy is arbitrary and capricious, and thus a violation of the Administrative Procedure Act. The complaint also alleges that ICE’s policy violates the plaintiffs’ First Amendment rights. Finally, the complaint alleges violations of the Freedom of Information Act because the government failed to publish details of their new policy. The plaintiffs are asking the court to vacate the new policy, and will shortly file a motion to stay the new policy while their case proceeds.