Ars Technica reported that last week that Illinois is the latest state to require law enforcement officials to seek court approval before deploying cell-site simulators, so-called "Stingray" devices, which can locate and track a person’s cell phone without their knowledge. Republican Gov. Bruce Rauner signed the “Citizen Privacy Protection Act,” with law enforcement officials forced to, “include a description of the nature and capabilities of the cell site simulator device to be used and the manner and method of its deployment, including whether the cell site simulator device will obtain data from non-target communications devices.” The law also makes law enforcement immediately delete any information collected about others, non- "targets." Some stingrays can intercept calls and text messages, others just collect metadata, and they can collect all sorts of records near their location, including criminals, and folks just passing by. California, Washington, Virginia, Minnesota, and Utah mandate a warrant for use of the devices, and the Department of Homeland Security and the Department of Justice last year created new policies that require a warrant for stingray use in most cases.