The Guardian have teamed up with SpatialKey to create a great Google Maps application that allows you to compare crime statistics in two different UK locations or compare two different crime statistics at the same location.
The application places two Google Maps side by side. You can enter two different locations and compare December's crime statistics as a heat map at each location. You can select from a number of crime categories and can even compare the statistics for two different categories at the same location.
The crime is displayed in the form of a heat map. If you roll-over either map the total crime at the specific location is shown in figures. If you click on the map an information window opens displaying the designated location from which the crime statistics were collected.