SOL: WOW Of course you realize that as soon as you pull out your camera the Elders will try to stop everything. My advise to you is.
1. Have your audio recorder going before entering the hall. Get the elders to make a statement that you have been invited by them for another meeting. This will prevent them from stateing later that you just trespassed into the hall. Once the police are there, They WILL revoke your rights to be there and ask you to leave. Have Sean phone call you just prior to the police entering the hall. If you start the camera to soon, you will lose their reaction. Initial anger towards you, trying to prevent questions from being asked by the police and trying to evade answering any questions before talking to Brooklyn Legal Desk.
Of course you realize that this will end any further appeal meetings. Good Luck and keep your cool. No matter what.