http://heyjackass.com/
These two sites offer some data for you. The first explains that, at least in Chicago, embarrassing crime stats are stroked by simply downgrading the offences.
The second simply offers an actual running tally of the constant savagery of Baghdad By the Lake. That IEDs are not used is only because they are too effing stupid to know how to build them.
Thanks, most of the sites including these concentrate on murders... I am not a programmer or designer, but it would be interesting to compile a similar Einzelfall map for the US or by state that included assaults, petty crimes etc.