Firearms

A Comparative Analysis of Crime Guns

Journal
Rsf-the Russell Sage Journal of the Social Sciences
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Date Published
October 2017
Agencies
NIJ-Sponsored
Publication Type
Research (Applied/Empirical)
Program/Project Description

Firearm Prohibition for Persons Convicted of Violent Crimes

Journal
American Journal of Preventive Medicine
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Date Published
June 2014
Agencies
NIJ-Sponsored
Publication Type
Research (Applied/Empirical)

Swab Touch Spray Mass Spectrometry for Rapid Analysis of Organic Gunshot Residue from Human Hand and Various Surfaces Using Commercial and Fieldable Mass Spectrometry Systems

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January 2018

This event brought together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.

The symposium was presented by the NIJ Forensic Technology Center of Excellence January 22-25, 2018.

Review the conference proceedings (pdf, 161 pages).

Status Update on the Development of a 3D Scanning and Analysis System for Cartridge Cases

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January 2018

This event brought together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.

The symposium was presented by the NIJ Forensic Technology Center of Excellence January 22-25, 2018.

Review the conference proceedings (pdf, 161 pages).

Instrumental Analysis of Gunshot Residue—Reconstruction of Crime Scenes

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January 2018

This event brought together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.

The symposium was presented by the NIJ Forensic Technology Center of Excellence January 22-25, 2018.

Review the conference proceedings (pdf, 161 pages).

Identification of Organic and Inorganic Gunshot Residues by Electrochemical and Spectrochemical Methods

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January 2018

This event brought together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.

The symposium was presented by the NIJ Forensic Technology Center of Excellence January 22-25, 2018.

Review the conference proceedings (pdf, 161 pages).

Estimating Error Rates of Firearm Identifications Using the CMC Method

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January 2018

This event brought together practitioners and researchers to enhance information-sharing and promote collaboration among the impression, pattern, and trace evidence analysts, law enforcement, and legal communities.

The symposium was presented by the NIJ Forensic Technology Center of Excellence January 22-25, 2018.

Review the conference proceedings (pdf, 161 pages).

Prevalence, Persistence, and Probabilistic Study of Inorganic and Organic Gunshot Residue in Shooter and Non-Shooter Populations

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September 2022

Welcome to our virtual poster session! The Forensic Technology Center of Excellence (FTCoE) would like to highlight student research in the forensic sciences! The FTCoE is grateful for all the universities, faculty, and students who took the time to prepare poster presentations for submission to this year’s event. We recognize your hard work, and we are here to celebrate and learn from your research.

This webinar was presented by the NIJ Forensic Technology Center of Excellence on September 22, 2022.

A Close Look at 3D Microscopy for Firearms Identification

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January 2018

Firearms identification is undergoing a major change in capability with the adoption of optical topography, which provides a 3D view of the surface of a bullet or cartridge case to capture the full range of subclass and individual characteristics.

This webinar was presented by the NIJ Forensic Technology Center of Excellence on January 10, 2018.
 

Rapid and Effective Identification of Organic and Inorganic Gunshot Residues

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November 2019

A team of researchers from West Virginia University’s Department Forensic and Investigative Science will discuss emerging methods for identification of organic and inorganic gunshot residues. Fast electrochemical, spectroscopic techniques, and LC/MS are presented as effective approaches to streamline gunshot residue investigations.

This webinar was presented by the NIJ Forensic Technology Center of Excellence on November 20, 2019.

Population Statistics for Firearm Toolmark Analysis

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Date Published
June 2022
Agencies
NIJ-Sponsored
Publication Type
Presentation
Research (Applied/Empirical)

NIBIN Challenges and Opportunities

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January 2019

This webinar will discuss the challenges and opportunities regarding the implementation of the NIBIN program. The NIBIN program has the potential to find links in cases involving firearms that can quickly assist in an investigation.

This webinar was presented by the NIJ Forensic Technology Center of Excellence on January 24, 2019.

Two-Pronged Study of Bullets Fired by Consecutively Rifled Barrels

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December 2021

In this study, firearms examiners were asked to use traditional microscopic methods to identify unknown bullets to the appropriate barrels. Additionally, 3D scans of these bullets were used in a matching algorithm to find similarity scores between bullets. Error rates were determined and the potential for subclass carry-over among the barrels was evaluated. 

This webinar was presented by the NIJ Forensic Technology Center of Excellence on December 16, 2021.

Glock Pistol Toolmarks: A Literature Review and Introduction of Undocumented Toolmarks

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December 2021

This webinar will expand examiners' awareness of additional areas of interest for identification purposes. Two previously undocumented toolmarks were observed in Glock pistols and could potentially be used for other make/model pistols. These new toolmarks will expand an examiner’s ability to compare fired and unfired ammunition components to each other or to a suspect firearm.

This webinar was presented by the NIJ Forensic Technology Center of Excellence on December 12, 2021.

Exploration of Breech Face Subclass Characteristics

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December 2021

This study assesses the production of subclass characteristics during the manufacturing of breech faces. Observations on how well subclass characteristics persist on manufactured breech faces with and without any finishing methods as well as the effect of the primer on the quality/quantity of the breech face impressions will be discussed.    

This webinar was presented by the NIJ Forensic Technology Center of Excellence on December 9, 2021.

Post-mortem Computed Tomography of Gunshot Wounds

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April 2021

In the third webinar, participants will be introduced to the use of PMCT for examining decedents with gunshot wounds, both homicidal and self-inflicted.  At the New Mexico OMI, a PMCT scan is performed in virtually all gunshot wound (GSW) related deaths.  In cases of suspected homicide or suspicious suicides, autopsy is also performed.  However, in non-suspicious cases involving self-inflicted GSW, PMCT is combined with an external examination, and sometimes a partial autopsy to retrieve a retained projectile, replacing the full autopsy.