The San Diego Association of Governments has developed an excellent website for crime data.  They have combined:

1.  Crime Maps - enter an address to see crimes reported nearby.

2.  Crime Statistics

3,  Megan's Law website - locations of sex offenders and maps.

4.  San Diego's 10 Most Wanted

5.  SD Crime Stoppers - where you can submit anonymous tips

6.  Online Warrants and Sheriff's Inmate Log.

Here is the link, and it's included in the right-hand column too:

http://arjis.org/