Gunshot Residue (GSR) has been a subject of interest for the forensic fraternity. Numerous analytical contributions towards the GSR analysis have been reported. Sensitivity, portability, cost-effectiveness, speed, etc. are such factors of electrochemical methods that have attracted the researchers across the globe to test the applicability of these as a potential analytical tool for forensic evaluation of GSR. With the development of scientific technology, efforts have been made towards the hand-held device for the on-field analysis of GSR. Recently, chemometric treatment of data generated from the electrochemical analysis of GSR has offered more effective approach. It makes the analysis more conclusive and minimizes the chances of false-positive detection. It will be very fruitful to anticipate the analytical potential of electrochemical tools for GSR analysis. This article reviews the research progress towards the development of electrochemical sensor for GSR detection reported during 2013–2020 along with challenges and future perspectives.
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The authors are sincerely thankful to the University Grants Commission (UGC), Ministry of Education, Government of India, for providing financial assistance (UGC-JRF vide Letter No. 190521040928) to the first author (AH).
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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Harshey, A., Srivastava, A., Das, T. et al. Trends in Gunshot Residue Detection by Electrochemical Methods for Forensic Purpose. J. Anal. Test. (2021). https://doi.org/10.1007/s41664-020-00152-x
- GSR(gunshot residue)
- Electrochemical sensing