In the state of Maryland, you are not allowed to video-tape an arrest and they can arrest you for doing it. Not only can they arrest you but it's a felony. They can do this under the guise that you are not allowed to record something without the permission of all the participants. That should be unconstitutional. I hope this law gets challenged.
http://wjz.com/local/preakness.fight...2.1708562.html