in germany you normally need a local company that covers your work, because rules are very complicated. You will need a local laser safety person who is "LSB" (Laserschutzbeauftragter). You have to write a detailed letter to the local public administration (for every use of lasers in public areas), and normally you will need a certificate of the german "TÜV", which will be done on each location and is very expensive. The TÜV will check if your equipment has keyswitches and lockable emergency switches, if your equipment has all important safety and information stickers, if you have placed all lasers 2,7m above the heads of the audience, if you follow german rules/laws, if the scanning safeties are working, if the measured optical power is under german "MZB" (equal to NOHD, but a bit more complicated, because in germany you are allowed to do audience scanning)...and so on.
If you are not from germany, you should ask companies to help you...
If you are still interested, this is the company which does most of all tour support across germany: http://www.laserfabrik.com
(working for all big companies around the world)