Jerry,

This was filmed at Munster in Germany where you must have the appropriate legal authority to use Pyros or blanks which was in place still there could be serious repercussions.

In England you don’t require a licence to use stage sized Pyros or blanks however most events these days don’t allow the use of blanks and Pyros when such devises are allowed they must as in Germany be used in a controlled manor namely in an arena firing away from the crowd or towards a wall or large open space.