Testing the Theories Underpinning Crime Linkage

Author(s):  
MATTHEW TONKIN
Keyword(s):  
2017 ◽  
Vol 19 (3) ◽  
pp. 187-194 ◽  
Author(s):  
Kaeko Yokota ◽  
Hiroki Kuraishi ◽  
Taeko Wachi ◽  
Yusuke Otsuka ◽  
Kazuki Hirama ◽  
...  

The main aim of this study was to determine the current situation of offender profiling in Japan. In addition, the accuracy of crime linkage and inferring offenders’ profiles were examined. To evaluate offender profiling comprehensively, we conducted a national survey of 156 people responsible for offender profiling between 2011 and 2012 to obtain their demographic characteristics and experience related to profiling. Furthermore, we also used a sample of 296 resolved cases to examine the content of profiling and the accuracy of predictions in offender profiling. The results of the statistical analyses revealed that police professionals from various backgrounds were engaged in profiling in Japan; 76% were police investigators, and 19% were professionals at forensic science laboratories engaged in psychological work. Regarding the utilization of profiling results in police investigations, 46% of profiling ‘led to identification of offender’. As for prediction accuracy, the rate of linkage errors (i.e. where profilers could not correctly link incidents even when they knew of the occurrence of these incidents) was 15%. Accurately inferring an offender’s profile was found to be between 72% (means of transportation) and 100% (sex). We also discussed the challenges faced by the police who practise offender profiling in Japan.


Author(s):  
CRAIG BENNELL ◽  
JESSICA WOODHAMS
Keyword(s):  

Author(s):  
Soumendra Goala ◽  
Palash Dutta

This article describes how serial crimes are very interesting for study in the absence of proper and solid evidence. From a high volume of criminal cases of similar types, it is difficult to detect the crimes that were committed by the same offender or not. The process of linking of crimes which were committed by the same offender or offenders is called Crime Linkage Analysis. In this article, a new hesitant fuzzy distance measure has been introduced and a fuzzy multicriteria decision-making approach has been proposed to help Crime Linkage Analysis, which enables us to find to what extent a pair of crime shares a common offender or offenders.


2018 ◽  
Vol 24 (1) ◽  
pp. 123-140 ◽  
Author(s):  
Jessica Woodhams ◽  
Matthew Tonkin ◽  
Amy Burrell ◽  
Hanne Imre ◽  
Jan M. Winter ◽  
...  

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