We often send people to the Phoenix Police Department's crime stats web site as part of their due diligence on a home. The site is great, but using it can be a bit tough... not very intuitive.
In response, we wrote a step-by-step guide for using the Phoenix crime statistics web site on our sister site, Real Estate Investing 101. Below is a link to the article.
Hope this helps you...
The Urban Team at Realty Executives