 That's Ashley Savage with Arlington County Police. If you come to a red light and you enter the intersection after the light has turned red, that is what triggers the camera to be activated, and the camera takes a photo as well as video of the vehicle. Then a police officer reviews the footage, and if they find that you ran the red light, you'll get a $50 ticket in the mail. A month-long warning period starts in August, and most of the cameras will begin giving tickets September 1st. They're hoping the program leads to fewer crashes. There's some factors that we consider when selecting those locations