Investigation Support Section

We undertake research to assist criminal investigations using a behavioral science approach. We have recently carried out studies on interviewing of suspects and adult victims/witnesses, offender profiling, and hostage incidents.

Research on interviewing of suspects and adult victims/witnesses

In order to provide appropriate care for persons with intellectual disability, we have developed a brief psychological screening test (a tablet PC version) to screen for them.

We conduct behavioral scientific research on interviewing of suspects and adult victims/witnesses with consideration for the Japanese law system and culture. We empirically investigate interviewing techniques used by Japanese police officers, by administering self-reported questionnaire surveys to police officers, victims, and prisoners, and by conducting an experiment for the general public.


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Research on Offender Profiling

Statistical profiling
Focusing on victim's characteristics, offender's behaviors at crime scenes and their behavioral consistency in the criminal database, we make inferences about the likely offender's profiles based on our statistical analyses.

We conduct behavioral scientific research on serious crimes, including serial sexual assaults, serial arson cases, and random street homicide. With regard to these criminal offenses, we conduct studies to establish the ways of linking crimes and of identifying the offender's characteristics and residential locations.


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