Each Laser demonstration of the "Laser Light Show" thats what its called when lasers over 5mw`s are used for the public.
You will describe the show and the laser operator will choose the proper Termination either by beam blocks or a proper means of not letting any radiation beyond that point
This how we file our "Laser Light Show" reports
A solid barn can be filed as a termination point A rock wall
A brick structure the same.. Water,trees,sky,fog.clouds are not termination points these are considered un terminated "Laser Light Shows"
We laser show operators have several pages of diagrams,descriptions we must file 30 days in advance!
If they see a problem we get a notification to stop and re design...
Un terminated laser shows have been basicly stopped thanks to the nit wits that have done extreme damage to our industry