The University of Arizona has just released their annual “Campus Security Report”, describing all the various crimes that took place on campus last year, as well as a bunch of other information.
One of the most foolish things I read in the document was this:

UAPD, in conjunction with ASUA, have available and distribute a combination whistle, light and key chain. The program is intended to give people another method of drawing attention in the event of an emergency. If you feel threatened, or are injured and need to summon help, and you cannot call for help via a cell phone or regular phone, blow the whistle. If you hear a whistle, please call 9-1-1 and report that you are hearing a whistle being blown, and the location from where the sound is coming.

Somehow I suspect a whistle/light/keychain will not be a terrible effective method of preventing crime.
I suspect that if they simply repealed the “weapon-free zone” policy for those holding carry permits, they’d notice that people would be better able to protect themselves if chose to do so. At least they’d have a better chance than if they simply had a whistle.
Another choice quote:

NEVER GO ONTO THE LEDGES outside your window. It?s a long but very quick trip to the ground.

Science, it works.