Chief Judge James Boasberg of the U.S. District Court in Washington, D.C. ordered the Trump administration to provide the migrants with habeas corpus relief and gave officials a week to propose, in writing, how they will ensure the imprisoned men will be permitted to fight their expulsion and detention in court.

The plaintiffs “never had any opportunity to challenge the government’s say-so,” said Boasberg, noting that since the Venezuelan men were sent to El Salvador—with President Donald Trump and other officials claiming they were members of the gang Tren de Aragua— “significant evidence has come to light indicating that many of those currently entombed in [prison] have no connection to the gang and thus languish in a foreign prison on flimsy, even frivolous accusations.”