The San Francisco Police Department has created on online mapping portal that allows the public to easily produce maps derived from data contained in SFPD police reports. Data is entered once a day and the current information archive goes back 90 days. Uses of the system can do geographic searches based upon the type of offense, location and date - the "What, Where and When" of this type of data.
News Article at SFGate.comSFPD Crime Mapping Portal
# posted by MapWatch @ Sunday, July 11, 2004