Almost everyone has seen the videos. In today's world they are hard to avoid. With the proliferation of video around the world, more opportunities to capture police on video while doing their job have arisen. The ACLU (American Civil Liberties Union) wants you to know your rights when it comes to photos and video of police behavior.
Tips include being able to "photograph anything that is in plain view" when you are in a public space, rules for private property, how to respond if an officer tries to confiscate your camera, and much more.
Know your rights, and read them in detail here.