Gaussianization of LA-ICP-MS features to improve calibration in forensic glass comparison

Ramirez-Hereza, Pablo; Ramos, Daniel; Maroñas, Juan; Balanya, Sergio A.; Almirall, José R.

doi:10.1016/j.forsciint.2023.111735

Forensic Science International

2023

DOI: 10.1016/j.forsciint.2023.111735

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Gaussianization of LA-ICP-MS features to improve calibration in forensic glass comparison

Pablo Ramirez-Hereza

Daniel Ramos

Juan Maroñas

et al.

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2024

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Cited by 3 publications

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Forensic Science and How Statistics Can Help It

Xu,

Vinci

2024

WIREs Computational Stats

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The persistent issue of wrongful convictions in the United States emphasizes the need for scrutiny and improvement of the criminal justice system. While statistical methods for the evaluation of forensic evidence, including glass, fingerprints, and deoxyribonucleic acid, have significantly contributed to solving intricate crimes, there is a notable lack of national‐level standards to ensure the appropriate application of statistics in forensic investigations. We discuss the obstacles in the application of statistics in court and emphasize the importance of making statistical interpretation accessible to non‐statisticians, especially those who make decisions about potentially innocent individuals. We investigate the use and misuse of statistical methods in crime investigations, in particular the likelihood ratio approach. We further describe the use of graphical models, where hypotheses and evidence can be represented as nodes connected by arrows signifying association or causality. We emphasize the advantages of special graph structures, such as object‐oriented Bayesian networks and chain event graphs, which allow for the concurrent examination of evidence of various nature.

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Forensic Science and How Statistics Can Help It

Xu,

Vinci

2024

WIREs Computational Stats

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Evaluating the strength of evidence of elemental profiling of polymers with LA-ICP-MS

de Bruin-Hoegée,

Corzo,

Zoon

et al. 2024

Forensic Chemistry

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Scientific basis and practical application of formalization by making decisions taking into account the uncertainty of the results of gas analyzers in the process of comparison

Mahmudjonov,

Masharipov,

Matyakubova

2024

ITM Web Conf.

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Abstract. In the work done, the current state of comparison of gas analyzers was studied, and the issue of formalizing the results by making decisions based on the international recommendations of ILAC-G8:09/2019 was studied. The problems arising in the processing of the results of the comparison of gas analyzers are studied, and recommendations are given to consider the risks affecting them. Differences, shortcomings, and advances between benchmarking and calibration are discussed. No need for repeated comparison of calibrated dies, recognition of calibration result during comparison was studied. The difference between measurement uncertainty and error was studied. Making decisions on the basis of international recommendations ILAC-G8:09/2019 in the application of measurement results in the process of comparison of measurement uncertainty. Recommendations are made for establishing a line of defense in decision-making. At the National Institute of Metrology of Uzbekistan, the experimental results were processed and decisions were made based on the international recommendations of ILAC-G8:09/2019. The importance of selection of calibration points in comparison was studied and recommendations were made.

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Gaussianization of LA-ICP-MS features to improve calibration in forensic glass comparison

Cited by 3 publications

References 12 publications

Forensic Science and How Statistics Can Help It

Forensic Science and How Statistics Can Help It

Evaluating the strength of evidence of elemental profiling of polymers with LA-ICP-MS

Scientific basis and practical application of formalization by making decisions taking into account the uncertainty of the results of gas analyzers in the process of comparison

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