Unless you use the Clinton approach,
Don't Ask, Don't Tell...
I'm sure the criminals that go to the parks will adhere to the rulng as well.......
Signs at the gate should read:
Welcome Victims!
Rules of Yosemite National Park.
Please comply with all criminal demands for your camera's cash, jewelry, food, and let them have their way with your wife and daughters.
Our studies have shown that you have a decent probability of surviving by appeasing your attacker.
Wild animals attack so infrequently, that you should not be in any danger. Play dead for the bears,...
Thank you, have a nice visit.
How about a big Rambo style knife? or Chinese throwing stars? or a tactical sling shot? are they banned also?