Civil rights groups are arguing that police in Wisconsin concealed their use of Stingray technology in tracking the location of a man suspected of illegally possessing a firearm. A friend-of-the-court brief asked the Seventh Circuit U.S. Court of Appeals to suppress evidence they claim was been obtained without warrant. (Courthouse News Service, January 26, 2016, by Josh Russell)
The brief says that the police hid the use of Stingray from the defense and the court thus violating the man’s due process rights. The Milwaukee police signed a non-disclosure agreement with the FBI that prevents them from revealing their use of Stingray technology. (American Civil Liberties Union, January 25, 2016, by Nathan Freed Wessler)