Mapping and Analysis for Public Safety

Geography has a major influence on crime. The features and characteristics of cityscapes and rural landscapes can make it easier or more difficult for crime to occur. The placement of alleys, buildings and open spaces, for example, affects the likelihood that a criminal will strike.

Combining geographic data with police report data and then displaying the information on a map is an effective way to analyze where, how and why crime occurs.

Computerized crime maps became​ more commonplace with the introduction of desktop computing and software programs called Geographic Information Systems (GIS) . Analysts map where crime occurs, combine the resulting visual display with other geographic data (such as location of schools, parks and industrial complexes), analyze and investigate the causes of crime, and develop responses. Recent advances in statistical analysis make it possible to add more geographic and social dimensions to the analysis.

NIJ's Role in Mapping

CrimeStat IV

CrimeStat is a free spatial statistics program for the analysis of crime incident locations.

Learn more about CrimeStat.​​

Crime Mapping Course Materials

NIJ has made available Course Materials for ​Crime Mapping Using ArcGIS 10.1.

NIJ program supports research that helps agencies use GIS to enhance public safety. The program examines:

• How to use maps to analyze crime.
• How to analyze spatial data.
• How maps can help researchers evaluate programs and policies.
• How to develop mapping, data sharing and spatial analysis tools.

NIJ funds research that uses GIS, statistical analysis and analysis of spatial data to lead to:

• More effective deployment of police.
• Better use of public safety resources.
• Stronger crime policies.
• Greater understanding of crime.

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