This practice would be open to all manner of abuse.
Fortunately for all, there are search engines like Google that can answer a lot of questions about a particular area, a city or state. Colorado has cities that appear in the top of the list for safety.
Local police and newspapers maintain online records and some provide crime maps.
Best of luck! Joann Perito, Broker Owner of Avenues Unlimited http://www.myavenuesunlimited.com