Local officials said the cameras have helped close more than 60 cases. But opponents of the technology say it can be used for mass surveillance, since the system is linked to a nationwide network.

Sandy Boyce, a 72-year-old retiree in Sedona, Arizona, first saw the cameras around town this summer. They were black and sleek, mounted on tall poles under large solar panels and positioned at ...

At least 16 states have adopted policies aimed at regulating the use and retention of data collected by license plate readers, which capture pictures of vehicle license plates every time a car ...

In more than 125 cities and counties across Michigan, nondescript cameras perched near busy roadways snap a picture every time a car drives by. The cameras — automated license plate readers primarily ...