Hoseman
Because of the camp you are going to you, will have an official letter printed out from the Dutch Government, which will be replaced with a different one when you have booked your weapons in at the camp. This covering letter must be carried at all times.
The Dutch laws are very strict, absolutely no replicas, and I would certainly not entertain taking my deacs. without the covering letter and certs., it is difficult as I understand it for Dutch nationals to own deacs.
Best regards
John