I hope you don't mind if I shift the subject a little here.

There's a broader category of crime that I think goes underreported. And that is, any minor crime (theft or vandalism, say) that takes place in a college campus, hotel, shopping mall, airport, sports stadium, or other quasi-public place – specifically any place that employs private security guards. Why? Because when a minor crime occurs – say someone takes your wallet or purse, or someone "keys" your car – most victims report it to the local security guard, not the police. Then they ASSUME that they have done the equivalent of reporting to the police, and that the security guard will pass the information on to the police, but this is not the case.

In fact, I suspect that private security guards don't so much prevent crime as lower the incidence of reported crime, simply by taking reports from the public and not passing them on to authorities.