The Detroit News reports:
Federal investigators are using a cellphone snooping device designed for counter-terrorism to hunt undocumented immigrants amid President Donald Trump’s immigration crackdown, according to federal court records obtained by The Detroit News.
An unsealed federal search warrant affidavit obtained by The News is the first public acknowledgment that agents are using secret devices that masquerade as a cell tower to find people who entered the U.S. illegally, privacy and civil liberty experts said.
The cell-site simulator device, known as a Hailstorm or Stingray, tricks nearby phones into providing location data and can interrupt cellular service of all devices within the targeted location. Federal investigators are required to obtain a judge’s approval to use the device.