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Shots fired with silencers--a report on four cases and experimental testing
J Missliwetz1, W Denk, I Wieser
1Institute of Forensic Medicine, University of Vienna, Austria.
Journal of Forensic Sciences
|September 1, 1991
Summary
Silencers on firearms significantly alter wound characteristics in homicides, often reducing close-range indicators like soot and powder tattooing. These devices can also decrease bullet energy and affect wound morphology.
Area of Science:
- Forensic Science
- Ballistics
- Pathology
Background:
- Analysis of four homicide cases involving silenced firearms.
- Supplemented by experimental data on wound features, ballistic behavior, and trace evidence.
Observation:
- Wound characteristics are primarily influenced by silencer design.
- Muzzle imprints can occur with silenced weapons at contact range.
- Biological matter may enter silencers during contact shots.
Findings:
- Silencers generally decrease bullet energy and accelerate energy release into tissue.
- Reduced or absent contact rings (soiling) were observed in wounds.
- Key close-range indicators (soot, tattooing) were often missing in wounds from silenced weapons.
Implications:
- Silenced firearms present unique challenges in forensic wound analysis.
- Distinguishing close-range or contact shots becomes more difficult.
- Understanding silencer effects is crucial for accurate ballistics and forensic investigations.