I was in San Jose (Silicon Valley) a few weeks ago, and the hotel I was staying at apparently has problems with weekend parties.
they had a written policy that they apparently hand out to guests staying for the weekend talking about eviction if there are noise complaints.
one interesting thing about this was that it wasn't hotel security that would evict them. The hotel would call the police and have the police evict them.
If you want to throw someone out and make it stick, you really should involve the professionals, either police or other local security personnel.
if someone is merely misbehaving, telling them to calm down, but the off-color jokes, etc is very definitely appropriate for anyone who witnesses the bad behavior to do (definitely NOT limited to event staff), but if you are talking about behavior bad enough to throw someone out (the abuse/assault level of behavior) that is a different story.