Geovisualization Approaches for Spatio-temporal Crime Scene Analysis --- Towards 4D Crime Mapping

Authors:
Markus Wolff;Hartmut Asche
Affiliations:
Department of Geography, University of Potsdam, Potsdam, Germany 14476;Department of Geography, University of Potsdam, Potsdam, Germany 14476
Venue:
IWCF '09 Proceedings of the 3rd International Workshop on Computational Forensics
Year:
2009

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Abstract

This paper presents a set of methods and techniques for analysis and multidimensional visualisation of crime scenes in a German city. As a first step the approach implies spatio-temporal analysis of crime scenes. Against this background a GIS-based application is developed that facilitates discovering initial trends in spatio-temporal crime scene distributions even for a GIS untrained user. Based on these results further spatio-temporal analysis is conducted to detect variations of certain hotspots in space and time. In a next step these findings of crime scene analysis are integrated into a geovirtual environment. Behind this background the concept of the space-time cube is adopted to allow for visual analysis of repeat burglary victimisation. Since these procedures require incorporating temporal elements into virtual 3D environments, basic methods for 4D crime scene visualisation are outlined in this paper.