How Flock cam­eras work

Auto­matic license plate read­ers are now all over, cap­tur­ing oceans of data.

Across Mas­sachu­setts, small black cam­eras are pho­to­graph­ing passing cars, cap­tur­ing such details as the license plate, the color, and the roof rack. Police can search those records in seconds, some­times from the other side of the coun­try. These auto­matic license plate read­ers are often referred to simply as Flock cam­eras after Flock Safety, an Atlanta-based man­u­fac­turer. But Motorola, Axon, and other com­pan­ies sell them, too.

While license plate read­ers have been around for more than a dec­ade, the wide­spread integ­ra­tion of AI and a search­able nation­wide data­base have spurred adop­tion in recent years by law enforce­ment and even private com­pan­ies includ­ing Home Depot and Lowe’s. Among the man­u­fac­tur­ers, Flock’s cam­eras are the most widely used.