Citation

Dong F, Zhao Y, Luo Y, Zhang W, Li Y. Forensic Sci. Res. 2022; 7(1): 40-46.

Copyright

(Copyright © 2022, Informa - Taylor and Francis Group)

DOI

10.1080/20961790.2019.1642984

PMID

35341129

PMCID

PMC8942529

Abstract

In recent years, many studies have been conducted in the field of firearm identification with the objective of providing an objective method of evaluating the comparison of cartridge cases. However, less attention has been paid to the objective evaluation of bullet comparisons. In this study, 1 000 registered Chinese Norinco QSZ-92 pistols were used, and a database of 2 996 bullets was constructed. Both the receiver operating characteristic (ROC) curve and the score-based likelihood ratio method were used to objectively evaluate the similarity scores derived by the Evofinder(®) system. The results indicate that this system has excellent ability to discriminate between the selected pistols. This paper proposes an objective evaluation method, which serves as a response to the ongoing debates regarding the foundation of the discipline.

Language: en

Keywords

Forensic sciences; automatic correlation; Evofinder®; firearm identification; likelihood ratio