The US Department of Justice Bureau of Justice Statistics recently updated this massive database to include selected data through 1996. Data is available at the national, state, county, and city level.
Currency varies by file.
This site gives you both instruction and links for finding forensic information on the net. Florida's most wanted. This is possibly the largest collection of law enforcement information on the web. Requires registration for access. Each table is available as an individual document so download times are minimal.