It is privately owned, the event is not insured, and I can send you a copy of the pdf of the waiver (its pretty standard fare) next time I'm on my main computer.
I know that a lot of people want us to get event insurance, but with the quotes I've gotten, I would have to start charging $15 plus per head *AND* have 40+ person attendance to make it not just completely empty my wallet every time I host a game.
The waiver has your basic "not our fault (excepting gross negligence of course)" stuff plus a release for your photographic and videographic likeness.