Actually the dutch law regarding to firearms, knifes and pyrotechnics aren't extreamly strict.

Knifes with a cutting blade shorter than 9cm are allowed, 7cm if the blade is in the middle thinner than 15mm. Locking blades are allowed. You just have to find a good excuse to carry them. Anything can be a weapon and if the police officer see's it as a weapon you will have problem or a ticket...

You'r allowed to shoot firearms at gunclubs, you only need paper that says you'r no criminal. After joining a gunclub for a year, you'r allowed to buy a gun. Your allowed to own up to 7 guns. Many calibers from small to large are allowed, except the .50. <img src="/images/graemlins/grin.gif" alt="" />

pyrotechnics have strict storage rules, but the prime reason why they are hard to get is the fact that very little places sells them. Flares that is, you can get smoke pods and stuff more easier.