Journal Published Online: 01 November 2003
Volume 48, Issue 6

Time Since Discharge of Shotgun Shells

CODEN: JFSCAS

Abstract

A technique for the estimation of time since discharge of a given class of spent shotgun shells is presented. The technique involved the use of SPME (Solid Phase Microextraction) sampling from the atmosphere inside spent shotgun shells. Compounds absorbed on the SPME fiber were desorbed and analyzed with GC-MS. The decrease in concentration of the combustion product naphthalene was monitored in all shells over a two-month period. Three conditions were examined to prevent naphthalene from escaping prior to testing the shells. A glass vial was successfully incorporated to halt the dissipation of naphthalene. At room temperature the naphthalene peak can be measured for several months and the curvefitting data can lead to an estimation of time since discharge.

Author Information

Wilson, JD
University of Wisconsin River Falls, River Falls, WI
Tebow, JD
Bureau of Criminal Apprehension, St. Paul, MN
Moline, KW
Bureau of Criminal Apprehension, St. Paul, MN
Pages: 4
Price: $25.00
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Stock #: JFS2003119
ISSN: 0022-1198
DOI: 10.1520/JFS2003119