Crime data and statistics

Start with

• Sourcebook of Criminal Justice Statistics.  (discontinued October 2018)
• Crime in the United States.
• Justice statistics : an extended look at crime in the United States
• Police Data Initiative.

For an excellent overview, see Survey of State Criminal History Information Systems. It presents data on the functions and status of state criminal history files

 The most cited sources tend to be the Uniform Crime Reports and the National Incident Based Reporting System. Some additional sources can be found on the Data and Statistical Services Crime Page.