the only reason why you would be so concerned is if your doing something wrong.
I don't honestly think the feds/cops will do anything at shows or at the parties - regardless of the "drug use" if any.
when you go to an Eminem show do the cops search for people blazing one up and arrest them? hell no! they don't really care.
maybe I'm wrong but I have never seen it happen or heard of it happening.
now the IRS on the other hand - shit those guys would have a field day at porn shows
