Rapid Field Identification of Subjects Involved in Firearm-Related Crimes Based on Electroanalysis Coupled with Advanced Chemometric Data Treatment

• Published in: Analytical chemistry (Washington) Vol. 84; no. 23; pp. 10306 - 10314
• Main Authors: Cetó, Xavier, O’Mahony, Aoife M, Samek, Izabela A, Windmiller, Joshua R, del Valle, Manel, Wang, Joseph
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 04.12.2012
• Subjects: Analytical chemistry; Chemistry; Electrochemical methods; Electrodes; Exact sciences and technology; Fourier transforms; Sampling; Volumetric analysis; Fourier transform spectroscopy; Electrochemical method; Voltammetry; Forensic aspect; Identification; Accuracy; Specificity; Loading; Sampling; Tool; Gold; False positive; Forensic science; Sample; Exposure; Carbon; Sensitivity; Treatment; Residue; Fingerprint method; Portable equipment; Technique; Detection; Chemometrics; Square wave

We demonstrate a novel system for the detection and discrimination of varying levels of exposure to gunshot residue from subjects in various control scenarios. Our aim is to address the key challenge of minimizing the false positive identification of individuals suspected of discharging a firearm. T...