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Foreign Object Insertion in Sexual Homicide: A New Perspective
Eric Beauregard1, Julien Chopin1, Rajan Darjee2
1Simon Fraser University, British Columbia, Canada.
Journal of Interpersonal Violence
|December 2, 2020
Summary
Foreign object insertion (FOI) in sexual homicides is linked to offender sexual dysfunction and victim substance use. Cases involving violence and mutilation were more likely to include FOI.
Area of Science:
- Forensic Psychology
- Criminology
- Sexual Violence Research
Background:
- Foreign object insertion (FOI) is an unusual behavior in sexual homicides.
- Limited research exists on FOI characteristics and comparisons between cases with and without FOI.
Purpose of the Study:
- To investigate offender, victim, and crime characteristics associated with FOI in sexual homicide.
- To provide empirical data on FOI in sexual homicide cases.
Main Methods:
- Analysis of 662 sexual homicide cases.
- Comparison of cases with and without FOI using chi-square and logistic regression.
Main Results:
- Offender sexual dysfunction and victim alcohol/drug use were associated with FOI.
- Victim beating, fisting, and genital mutilation correlated with FOI.
- Postmortem sexual activity and offender evasion tactics were more common in FOI cases.
Conclusions:
- FOI in sexual homicide is associated with specific offender and victim vulnerabilities, as well as particular crime dynamics.
- Findings contribute to understanding sexual homicide, victim vulnerability, and sadism.
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