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NCJ Number: 156772 Find in a Library
Title: Recovery Method for Airborne Gunshot Residue Retained in Human Nasal Mucus
Journal: Journal of Forensic Sciences  Volume:40  Issue:4  Dated:(July 1995)  Pages:659-661
Author(s): R H Schwartz; C A Zona
Date Published: 1995
Page Count: 3
Type: Test/Measurement
Format: Article
Language: English
Country: United States of America
Annotation: An extraction/concentration technique has been developed to recover the airborne gunshot residue (AGSR) retained in human nasal mucus.
Abstract: In this study, a shooter was exposed to AGSR from a single round of 38 Special caliber, nylon jacketed 158 grain Federal Register ammunition. The shooter was exposed to the AGSR for 1 minute under "normal" breathing conditions. The shooter then exited the room and washed his/her hands and face. The room was closed and evacuated, using exhaust fans vented to the roof outside to ensure a complete air exchange. The air quality of the room was monitored for AGSR before, during, and after shooting, using standard air sampling techniques. After a recorded post- firing time, the nasal mucus samples was collected onto a piece of substrate by normal nose blowing. All samples were submitted as a blind study. The technique has successfully recovered abundant AGSR from 48 hours post-firing sample collection times. The AGSR particles were characterized by a JEOL 6400 scanning electron microscope coupled with a Noran Voyager energy dispersive X-ray spectrometer. 1 table and 8 references
Main Term(s): Science and Technology
Index Term(s): Gunshot residue; Investigative techniques; Trace evidence
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