For filming with gas and blank firearms (SRS weapons) the following regulation must be considered according to the arms act (Waffengesetz) of April 1, 2003:
All persons who carry a gas weapon or firearm in public need to have a small weapon license. Otherwise, carrying a weapon is a criminal offense and can be disciplined with imprisonment up to 3 years.
In the State of Brandenburg the responsible gun authority is the police headquarters.
Please get in touch with the legal department of the police district of your residence.
police departments in the state of Brandenburg:
Filming with uniforms
Filming with uniforms in public spaces is only possible at locked locations.
The use of the "costume - uniform" at the cordoned off location does not require separate approval.
Wearing the uniforms by the performers in unblocked areas is not permitted.