Transcription of FIRED CARTRIDGE CASE EJECTION PATTERNS ... - …
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Volume 2, Number 3, November 2010 FIRED CARTRIDGE case EJECTION PATTERNS FROM SEMI-AUTOMATIC FIREARMS William J. Lewinski, , William B. Hudson, , David Karwoski3, Christa J. Redmann4 Abstract During testimony, experts often cite that spent CARTRIDGE case EJECTION locations from a semi-automatic firearm indicate the location of the shooter based on the assumption that most spent CARTRIDGE cases land to the right and rear of the shooter. The authors of this study investigated whether spent CARTRIDGE case EJECTION locations are an accurate indicator of a shooter s location. Eight different semi-automatic weapons most frequently used by police officers were used to collect data from eleven different shooting positions. The results highlighted the significant inconsistency of the spent CARTRIDGE case EJECTION locations that occurred across test positions even when several factors including firearm type, firearm position, and ammunition were accounted for.
Volume 2, Number 3, November 2010 FIRED CARTRIDGE CASE EJECTION PATTERNS FROM SEMI-AUTOMATIC FIREARMS William J. …
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