Evaluation of morphological and chemical differences of gunshot residues in different ammunitions using SEM/EDS technique

Kara, llker; Sarikavak, Yasin; Li̇şesi̇vdi̇n, S. B.; Kasap, M.

doi:10.1080/15275922.2015.1133729

Cited by 18 publications

(17 citation statements)

References 24 publications

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“…Gunshot residue particles are of an irregular and spherical shape. Under the spheroidal category, particles may be displayed as a perfect sphere but they also might appear stretched, dented or even distorted [52,53].…”

Section: Discussionmentioning

confidence: 99%

Reviewing Research Trends—A Scientometric Approach Using Gunshot Residue (GSR) Literature as an Example

et al. 2020

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The ability to manage, distil and disseminate the significant amount of information that is available from published literature is fast becoming a core and critical skill across all research domains, including that of forensic science. In this study, a simplified scientometric approach has been applied to available literature on gunshot residue (GSR) as a test evidence type aiming to evaluate publication trends and explore the interconnectivity between authors. A total of 731 publications were retrieved using the search engine ‘Scopus’ and come from 1589 known authors, of whom 401 contributed to more than one research output on this subject. Out of the total number of publications, only 35 (4.8%) were found to be Open Access (OA). The Compound Annual Growth Rate (CAGR) for years 2006 and 2016 reveals a much higher growth in publications relating to GSR (8.0%) than the benchmark annual growth rate of 3.9%. The distribution of a broad spectrum of keywords generated from the publications confirms a historical trend, in particular regarding the use of analytical techniques, in the study of gunshot residue. The results inform how relevant information extracted from a bibliometric search can be used to explore, analyse and define new research areas.

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Section: Discussionmentioning

confidence: 99%

Reviewing Research Trends—A Scientometric Approach Using Gunshot Residue (GSR) Literature as an Example

et al. 2020

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“…At the end, in conflicting evidence of the literature cited from many years, for reasons we do not understand some Authors [67,68,69] still describe the formation of GSR as a phenomenon that occurs with the solidification of the gases when they leave the inside of the weapon. By the way a notorious expert, operating in our country, often asserted in court that the typical GSR spherical morphology was due to the circular motion given to the particles by the barrel rifling.…”

Section: The Enthalpy Per Unit Volume H Can Be Expressed Likementioning

confidence: 96%

On the Formation and On the Surface of Inorganic Lead, Barium and Antimony Based Gunshot Residues: A Thermodynamic Approach

Nunziata¹,

Morin²

2017

Journal of Forensic Science & Criminology

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In their first full report on the analysis of GSR by SEM-EDS, Wolten and colleagues stated that the great majority of the gunshot residue particles (GSR), between 70 to 100%, have a characteristic morphology thus providing a detection criterion holding significance equal to that provided by the elemental composition. In fact, the particles must have a spherical or spheroidal shape and their surface should appear amorphous, devoid of any crystalline characteristic.

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“…An explanation for the spatial distribution of GSR, depending on the weapon used, was also given by Chohra et al (19). The authors place an emphasis on the proximity of both the hand that operates the firearm to the ejection port, and the hand holding the gun barrel to the exhaust gas locations (35)(36)(37). The distribution of residue, especially upon the hand used to fire the gun and the hand holding the barrel of the gun, was shown to depend upon the weapon used and the corresponding areas of plume discharge.…”

Section: Spatial Distribution Of Gsrmentioning

confidence: 99%

“…The high contamination of both hands is of particular note when the second hand is used for supporting the shooting stance (18). Kara et al (35) reported that since the hand holding the barrel of the gun is closer to the muzzle of the gun than the hand pulling the trigger, the non-shooting hand may be contaminated with a greater amount of GSR. It was found that the back of the shooter's supporting hand contained over 30% more GSR particles than the shooter's firing hand.…”

mentioning

confidence: 99%

The fate and behaviour of gunshot residue: recreational shooter distribution

Blakey

Sharples

Chana

et al. 2019

Australian Journal of Forensic Sciences

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The fate and behaviour of gunshot residue: recreational shooter distribution http://researchonline.ljmu.ac.uk/id/eprint/10305/ Article LJMU has developed LJMU Research Online for users to access the research output of the University more effectively. ABSTRACTA review of the literature concerning the fate and behaviour of gunshot residue (GSR) is presented.A number of concomitant parameters including firearm and ammunition type, plume and GSR material characteristics, travel distances, chemical composition and GSR morphology are critically discussed in relation to their effects on the distribution and deposition, transfer and persistence processes of GSR. The underlying mechanisms associated with such processes are also considered.Knowledge of these processes on GSR materials could provide valuable information concerning scene preservation and subsequent forensic sampling. The number of GSR particles deposited can vary significantly with each firearm discharge, highlighting the potential to produce distinctive data in each individual case. With the continual development and compositional changes of new ammunition types, further evaluation of the effect these processes may have on GSR evidence and their possible influence on the interpretation of the analytical results should be given due consideration.

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Evaluation of morphological and chemical differences of gunshot residues in different ammunitions using SEM/EDS technique

Cited by 18 publications

References 24 publications

Reviewing Research Trends—A Scientometric Approach Using Gunshot Residue (GSR) Literature as an Example

Reviewing Research Trends—A Scientometric Approach Using Gunshot Residue (GSR) Literature as an Example

On the Formation and On the Surface of Inorganic Lead, Barium and Antimony Based Gunshot Residues: A Thermodynamic Approach

The fate and behaviour of gunshot residue: recreational shooter distribution

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