The U.S. Immigration and Customs Enforcement agency is testing a shiny new tool for its digital surveillance arsenal. It is a GPS-enabled wristwatch with facial recognition capabilities that will make it easier — officials say — for migrants awaiting immigration hearings to check in with the agency.

From ankle monitors to smartphone apps to the new Fitbit-esque smartwatch, the Biden administration has overseen a dramatic expansion of the technological toolbox used to surveil immigrants awaiting their hearings in the U.S. White House officials say these measures, all part of ICE’s Alternatives to Detention program, are more humane than traditional detention. But critics argue that the system reproduces the dynamics of incarceration with a technocratic spin, compromising the privacy rights of hundreds of thousands of immigrants and asylum seekers while leaving them with lasting psychological damage.

The program has also left migrants and human rights advocates with lots of questions about what exactly the government does with the substantial amounts of data that it collects. In a curious turn of events, less than a month before ICE announced its plans to pilot test the smartwatch, it unveiled its first-ever analysis of privacy risks that the Alternatives to Detention program carries.

All U.S. federal agencies are required by law to assess the potential privacy impacts of any technology they plan to use before actually deploying the software or tool. Although ICE first rolled out its electronic monitoring program in 2004, it didn’t get around to publishing an assessment of the program’s privacy-related risks until just last month.