While waiting to get in touch with the people I need, I've been looking into what literature exist already...
I've noticed a couple major problems scenes of live music:
ONE: FROM MOSH PITS TO STAGE-DIVERS:
People sometimes do "stupid" stuff because it's "fun." People in charge don't want to limit "fun" too much because otherwise nobody would come and they wouldn't make $.
However, they don't want anyone to die other... so there are security folks. They catch crowdsurfers before they get on stage, and pull out the people up front that are getting smushed to death because they didn't know what they were getting themselves into.
TWO: CLUB SHOOTINGS
It happens; Famous incidents (Shyne/Puffy/Lopez) and locally.
Interestingly, at least in the Seattle scene recently, there's been quite a few. Most notable, those "club nights" that are 18+ and not only 21+. Why are these events the ones that are problematic? Gangs. By drawing 16+ or 18+, they are also drawing in a gang related crowd. We've seen this happen at Vera too. That's why we're not doing any dance events until we do a comprehensive re-evaluation of our capabilities and understand fully the scope of the problem we're dealing with.
FOR ME: Couldn't yet find any work published on the type of scene I'm leaning more towards, so this could be a very interesting space to produce some work on.