Well when I saw her at Park West last time (they have no rule about cameras) they posted signs that said no cameras due to artist's request, and when people did have their cameras security came around and told them to put the camera away or it would be taken away, and as far as I know there wasn't anyone who did get to take pictures.
I know the Rave here has a no pictures policy, and they straight pat you down, make you take everying out of your pockets, use the beeper wands, all of that LOL. Some venues are not as strict though *shrug*