From GISUser.com:
Presenting information [attributes such as offender name, time of day, and type of crime] on a map provides a new perspective, while trends and patterns become more apparent. Once incident data is depicted on a map, users can conduct further analysis to identify the boundaries of “hot spots”, determine proximity to schools or gang territories, and generate reports summarizing events. Using Crime Analyst, crime maps and reports summarizing events can be created in minutes rather than hours and can uncover crime patterns like distances and routes between crimes, repeat offences, time of crime, and geographical hotspots.
Related: The Geospatial Web: How Geobrowsers, Social Software and the Web 2.0 are Shaping the Network Society – Arno Scharl, Klaus Tochtermann (Eds.), Advanced Information and Knowledge Processing Series 2007, London: Springer, ISBN 1-84628-826-6