CrimeReports

Using the web to aid in crime tipping and raising awareness.

Maps that show crime:

show crime and allow tipping
CrimeReports

as far as market potential goes, CrimeReports has a police department facing part of their business called CommandCentral (http://classic.crimereports.com/product/commandcentral) that saves police analytics time in mapping and trending.
quick market assessment estimates it to be in the $5 M range if we assume a 10k / yr license with 500 US cities > 100,000 pop.