Study of gunshot residue by NAA and ESEM/EDX using several kinds of weapon and ammunition

Chohra, M.; Beladel, Brahim; Ahmed, L. Baba; Mouzai, M.; Akretche, D.E.; Zeghdaoui, Abdelhamid; Mansouri, Ammar; Benamar, Mohammed El Amine

doi:10.1016/j.jrras.2015.02.012

Cited by 18 publications

(15 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A close relationship between firearm type and the spatial distribution of GSR has been shown . Schwoeble and Exline investigated plume development and the areas of heaviest GSR concentrations of 28 different weapons.…”

Section: Distribution Of Gsrmentioning

confidence: 92%

See 1 more Smart Citation

Fate and Behavior of Gunshot Residue—A Review

Blakey

Sharples

Chana

et al. 2017

Journal of Forensic Sciences

View full text Add to dashboard Cite

A review of the literature concerning the fate and behavior 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.

show abstract

Section: Distribution Of Gsrmentioning

confidence: 92%

“…An explanation for the spatial distribution of GSR, depending on the weapon used, was also given by Chohra et al . 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 .…”

Section: Distribution Of Gsrmentioning

confidence: 98%

Fate and Behavior of Gunshot Residue—A Review

Blakey

Sharples

Chana

et al. 2017

Journal of Forensic Sciences

View full text Add to dashboard Cite

show abstract

“…A close relationship between firearm type and the spatial distribution of GSR has been shown (2,18,19). Schwoeble and Exline (2) investigated plume development and the areas of heaviest GSR concentrations of 28 different weapons.…”

Section: Influence Of Firearm Typementioning

confidence: 91%

The fate and behaviour of gunshot residue: recreational shooter distribution

Blakey

Sharples

Chana

et al. 2019

Australian Journal of Forensic Sciences

View full text Add to dashboard Cite

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.

show abstract

“…An additional advantage is the non-destructive analysis, which allows the sample to be preserved as a legal proof. Increasing reliability of SEM/EDS analysis and reducing false positive (FP) and false negative results are connected to the possibility for revisit the specific or suspicious particles after automatic identification and re-study particle morphology and elemental composition [4,5]. When an evidence from shooting event is presented as characteristic GSR particle, attention must be paid to the analytical characteristics of the applied SEM/EDS protocol and quality control procedures after method validation [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A study of the effect of working parameters and validation of SEM/EDS method for determination of elemental composition of commonly encountered GSR samples in shooting events in Kosovo

Tahirukaj

Olluri

Surleva

2021

Journal of Forensic Sciences

View full text Add to dashboard Cite

Reliability of forensic evidences for presence of inorganic gunshot residue (iGSR) on a given surface strongly depends on the performance of scanning electron microscopy/ energy dispersive X-ray spectrometry (SEM-EDS) method. This article presents the results from a study of the effect of SEM/EDS working parameters on the method performance and quality of iGSR data, as well as a development of a database of iGSR encountered in R Kosovo. The optimal working parameters of SEM/EDS were established by one-variable-at-a-time approach and the method was validated according to ASTM1588-10. The precision, trueness, and expanded uncertainty for PbBaSb particles were estimated and the method was assessed as a "fit for purpose" with a satisfactory performance (z-score < 2). Expended uncertainty of quantification of GSR particles estimated by single laboratory and quality control approach was 6% (k = 2).The validated SEM/EDS method was applied for identification of characteristic iGSR particles in samples from shooting events in Kosovo. The method was demonstrated to be capable of providing a legal proof for iGSR existence on a specific surface. The quality of the results was not influenced by the origin of iGSR. Five hundred fifty-five samples from 144 cases occurred during the last 3 years were analyzed and 14% rate of positive results was found.

show abstract

Study of gunshot residue by NAA and ESEM/EDX using several kinds of weapon and ammunition

Cited by 18 publications

References 17 publications

Fate and Behavior of Gunshot Residue—A Review

Fate and Behavior of Gunshot Residue—A Review

The fate and behaviour of gunshot residue: recreational shooter distribution

A study of the effect of working parameters and validation of SEM/EDS method for determination of elemental composition of commonly encountered GSR samples in shooting events in Kosovo

Contact Info

Product

Resources

About