skip navigation

CrimeSolutions.gov

Add your conference to our Justice Events calendar

PUBLICATIONS

Register for Latest Research

Stay Informed
Register with NCJRS to receive NCJRS's biweekly e-newsletter JUSTINFO and additional periodic emails from NCJRS and the NCJRS federal sponsors that highlight the latest research published or sponsored by the Office of Justice Programs.

NCJRS Abstract

The document referenced below is part of the NCJRS Library collection. To conduct further searches of the collection, visit the NCJRS Abstracts Database. See the Obtain Documents page for direction on how to access resources online, via mail, through interlibrary loans, or in a local library.

 
  NCJ Number: NCJ 241095     Find in a Library
  Title: Persistence of Biological Traces in Gun Barrels After Fatal Contact Shots
  Document URL: HTML PDF 
  Author(s): Christian Schyma ; Burkhard Madea ; Cornelius Courts
  Journal: Forensic Science International: Genetics  Volume:7  Issue:1  Dated:January 2013  Pages:22 to 27
  Date Published: 01/2013
  Page Count: 6
  Annotation: The aim of the present prospective study was to investigate whether victim DNA could reliably be recovered from the inside of the barrels of firearms that were used in 20 cases of homicidal or suicidal close contact shots.
  Abstract: In the majority of cases suicidal shots are put to the head. Typically the gun's muzzle is held against the head. The aim of the present prospective study was to investigate whether victim DNA could reliably be recovered from the inside of the barrels of firearms that were used in 20 cases of homicidal or suicidal close contact shots. Additionally, it was investigated whether such biological traces were eliminated by subsequent firing. After autopsy sterile swabs were used to collect samples from the anterior part of the barrel thereby avoiding the muzzle. In some cases prior endoscopic inspection had revealed traces of blood and soft tissue in the barrel. For 16 cases, another swab was used to also collect sample from the posterior part of the barrel entering from its rear end. Then one shot was fired through the weapon using the same ammunition as in the suicidal shot and the sampling procedure was repeated. DNA was extracted using a magnetic beads based protocol, quantified, and STR-systems were amplified using several commercially available multiplex-STR-PCR-kits. For samples taken after the first shot DNA-analysis yielded STR profiles eligible for reliable individualization in 17 of 20 cases. After a second shot had been fired 8 or more STR systems were amplified successfully in 14 of 20 barrels. (Published Abstract)
  Main Term(s): Forensics/Forensic Sciences
  Index Term(s): Suicide ; Victim identification ; Investigative techniques ; Homicide investigations ; DNA fingerprinting ; Foreign criminal justice research ; Firearms deaths ; Germany
  Publisher URL: http://www.elsevier.com 
  Type: Report (Study/Research)
  Country: United States of America
  Language: English
   
  To cite this abstract, use the following link:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=263183

*A link to the full-text document is provided whenever possible. For documents not available online, a link to the publisher's website is provided. Tell us how you use the NCJRS Library and Abstracts Database - send us your feedback.