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Geoprofiling Chapter 4

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Summary: Chapter 4: Geoprofilers assist officers with discovering the location of where a criminal resides or the locations they may be going to find their victims. Geoprofiler use two methods to investigate; geographic mapping and /or geographic profiling. Geographic mapping provides a visual map of places that have the highest rates of multiple crimes, drug selling or victimization. Geographic profiling is associated with determining the spatial movements of a serial offender. There are two theories for Geographic profiling; routine activity theory and rational choice theory, both were developed by Paul and Patricia Brantingham. Routine activity theory is when offenders use their everyday routine to capture their next victim or create a plan for any illegal …show more content…

While the criminal is being more familiar with their surrounding they also could be creating a mental map for escaping or hiding evidence. Rational choice theory is based on assumption that the criminal is a reasoning person who weighs means and end, and is unlikely to take risks without sufficient benefits (p. 101) To enhance the visual aspect of profiling, software was created; such as Rigel and Rigel Analyst, CrimeStat and Dragnet. Distance decay is the core concept of geology. Distance decay proves that cultural and social groups may give some clues to find the criminal but it’s not totally reliable. Buffer zones show that most predators won’t commit crimes close to home. The father the crime is committed from the suspects residence the more the time it will take to investigate. There are two type of offenders, the marauder and the commuter. The marauder may travel from their home to crime scene, then return home going a different direction that they came. The commuter travels some time from their residence to commit the offence. Most commuter based their crime location on the

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