Re: When to call it?
Yeah, and even with our Master system (for bigger shows a person, depending on the type of the show multiple persons with a master degree have to observe the venue and have the authority to call a show) there are certain degrees of conflict of interest. The master can be employed by muncipal companies or may be working freelance for a staging company he/she has to observe on that certain gig. But it's better than nothing, honestly I'm glad that we have this system now, even when it sucks from time to time and even when it's not perfect in terms of accident prevention (like the very sad Loveparade desaster, where 21 died).
I have 2 thoughts:
1. Industry is not able to regulate itself in an effective way. Too many money connections, making it hard to see only the safety side of our world.
(When I point out safety flaws I am ruining the party, basically. Might cost me gigs. I do so anyway, as many do, because it's important. Unions could help on this side. A union steward should be able to have a word on safety concerns without negative consequences.)
2. State regulation can be applied, has to be watched closely, not to swing too much to either the loose or the tight side. The first means no effective accident prevention, the second means getting nothing done. The German model is maybe worth a look for the USofA.