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| NCJ Number:
|
NCJ 186430
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| Title:
|
Method for Collection of Gunshot Residues From Skin and Other Surfaces
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| Journal:
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Journal of Forensic Sciences Volume:45 Issue:6 Dated:November 2000 Pages:1299 to 1302
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| Author(s):
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Stellan Stahling ; T. Karlsson
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| Publication Date:
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11/2000 |
| Pages:
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4 |
| Type:
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Studies/research reports |
| Origin:
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United States |
| Language:
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English |
| Annotation:
|
This paper describes a method of collecting gunshot residues from
the skin of persons who have been injured by firearms. |
| Abstract:
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To avoid removing samples of human skin tissue, a series of
experiments were performed to find a method suitable for
transferring gunshot residues (GSR) from the skin to a carrier. A
commercially available transparent, adhesive plastic film
(available at bookstores) was used in this experiment. An
ordinary permanent felt-tip marker pen of any color can be used
to mark the location of the gunshot wound and other anatomical
fixed points on the nonadhesive side of the polymer film. All
reagents used were the standard chemicals used by the laboratory
for the Modified Griess Test (MGT), Copper-Nickel Test (KTM), and
Sheet Printing Method (SPM or the modified MSPM). The procedure
for shooting distance determination was the same as that used for
clothing. MGT was, however, conducted in the reverse order,
because the adhesive plastic film is not permeable to vapors
(vapors from the acid solution). When lead-free primer ammunition
for use in indoor ranges was involved or when Winchester or
Federal's lead-free ammunition was used, the SPM and the
MSPM test were not necessary; the MGT and particularly the KTM
tests generally gave good results for short shooting distance. If
the type of ammunition is unknown, all three chemographical tests
must be performed. Some factors that obstruct the use of this
method are the presence of large amounts of blood in the injured
area or when the body is wet or washed prior to examination.
This method is also useful for collecting gunshot residues from
other objects, such as leather. 6 figures and 15 references |
| Main Term(s):
|
Police policies and procedures |
| Index Term(s):
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Gunshot residue ; Handguns ; Forensic sciences ; Investigative techniques |
| |
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/Publications/abstract.aspx?ID=186430
|
* A link to the full-text document is provided whenever possible. For documents
not available online, a link to the publisher's web site is provided.
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