Chicago aldermen endorsed a measure that would require those who make money off unlocking the devices to keep records on their customers.
"The idea is similar to a city law requiring pawn shops to track who walks through the door and sells them merchandise. It’s mostly small cell phone stores that unlock cell phones and tablets, which is the process of severing service from the original provider so a new owner can use it. Such stores would have to get identification from the person paying to unlock it, along with identifying numbers from the device. That information would have to be reported daily to Chicago police," said the Chicago Tribune.