Discrimination of nail polish using attenuated total reflectance infrared spectroscopy and chemometrics

Trace nail polish evidence recovered in forensic investigations can serve as important corroborative evidence and assist in crime reconstruction, especially in cases related to physical and sexual assault against women. Nevertheless, nail polish evidence has been neglected either owing to its infrequent occurrence or, when it is encountered, it is present in only a trace quantity, which makes the analysis difficult when using conventional...