The map below shows robbery data thematically shaded by enumeration districts across the London Borough of Croydon. A custom range has been used to present the distribution of this crime type. The custom range follows in a logical and easy to understand sequence. The map serves the purpose of identifying those enumeration districts that are grouped in the highest crime count categories. The map also makes use of natural colours that complement the central message of the map (i.e. where are the hotspots?), and a sensible number of ranges to represent the pattern of this crime across Croydon.

When identifying hotspots from this map early attention is drawn to the large enumeration districts that are coloured in the darker orange shading, rather than the EDs of the same colouring but less than a tenth the size. This type of mapping can often mislead identifying and prioritising crime reduction resources to areas that appear as problems, but where the problem is exaggerated from a thematic map of areas of varying size and shapes