Mapping Criminal Activity Space

Abstract

This article discusses how the use of cellular networks by a criminal offender produces spatio-temporal data that reveals his/her activities and activity space. The methods aim to establish possible paths that the criminal will use to move around in his/her activity space; the edges of the activity space; districts in which the criminal is moving such as residential, commercial and industrial areas and attractions such as night clubs and warehouses; and nodes determined by the frequency of cell usage. Using cellular location usage data, it is possible to determine the criminal’s mental map of the area in which he/she operates based on routine activity theory approach as well as establishing the criminal’s comfort zone. Such information can be valuable for intelligence and investigative purposes.