I have reported on certain leo units that have been using ka photo in certian area's as of yet. I have only seen 1 camera in a unit and its pointing forward out of the windshield. I have not seen a camera pointing out of the rear due to heavy tint but I am assuming there is a camera looking out the rear of the unit. My question is how close do you have to be inorder for the camera to take a pic of your plate? I have been alerted of Ka from 500-1000 depending on traffic. I would think it would be very close since the photo part is angled to hit selected violators. When I'm at full Ka signal and I can see the white in the leo's eyes I would think I'm close enough right?