Immigration and Customs Enforcement (ICE) stops publicly revealing where it is holding thousands of detainees who have final deportation orders, according to current and former ICE officials and confirmed by lawyers. Reporting by the Associated Press says ICE removed these individuals from its online detainee locator on September 15, and that the database now shows no record for them.

The change makes it harder for family members and legal representatives to locate detainees. Lawyers also say it complicates filing habeas corpus petitions, because they may not be able to determine the correct federal district for a case. The Associated Press cites data from UCLA and UC Berkeley’s Deportation Data Project indicating that in July about 16,000 people who were processed by ICE received final removal orders, amounting to more than a third of that month’s ICE bookings.

Both outlets describe the decision as unannounced and based on accounts that ICE officials did not publicly explain the change. One report notes that detainees held in certain facilities and temporary holding centers appear to be exempt due to litigation requiring immediate documentation in the locator system, suggesting the removal may not be uniform across all detainees.