There's alot of thing you have to do.
First, yes, you should inform the police that there is an area where people are playing with replica firearms, show them that area, and then isolate that area as much as possible from the public. Then, you need to buy insurances and such, and make sure you own the land or the land owner has given you permission. But you're going to have to make up a good field for the first airsoft experience where you live, or no one will want to play it. There's alot of work that has to go into making a field.
Looking for an Age Verifier who passes through Renfrew area to contact me! PM me please!