This free tool shows whether police near you use Flock cameras

Atlas of Surveillance makes it easy to see what surveillance technology your local police department uses. It's a free database that shows where automated license plate readers and other surveillance tech is being used. Flock cameras are a hot topic right now. They're automated license plate readers with concerning privacy implications, and you probably drive past more of them than you realize. If you're curious about what your local police department is using, the Atlas of Surveillance gives you a simple way to find out. Created by the Electronic Frontier Foundation and the University of Nevada, Reno's Reynolds School of Journalism, the site collects public information about surveillance tech used by law enforcement across the US.