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Serial homicide: an investigation of behavioural consistency

โœ Scribed by C. Gabrielle Salfati; Alicia L. Bateman

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
132 KB
Volume
2
Category
Article
ISSN
1544-4759

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โœฆ Synopsis

Abstract

To examine if serial homicide offenders are consistent across their crimes, a model was developed empirically that could be used to distinguish between crimes that were instrumental and those that were expressive. The first known three offences in each series of 69 US serial homicides committed by 23 offenders, were examined and the instrumental and expressive themes determined. Three models were then explored that test for consistency across these themes. The most liberal model was found to classify all of the offences effectively and to reveal complete consistency across the three crimes for all offenders. The implications of these results for offender profiling and further study of serial homicide are discussed. Copyright ยฉ 2005 John Wiley & Sons, Ltd.

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One of the key challenges for Investigative Psychology is to understand the processes of behavioural consistency and the ways in which offenders develop or change over time. This is fundamental to establishing the reliability and validity of any assessment of an offender's activities that may be dra