Criminal Forensic Analysis

Vibrational Spectroscopy: Recent Developments to Revolutionize Forensic Science

“…These two techniques are not new; they are both very well established and have been progressing extensively over the past decade and, more prominently, within the last 2 years. In 2002 Edward Bartick published a paper for the proceedings of the 16th meeting of the International Association of Forensic Sciences demonstrating that Raman Spectroscopy is an emerging technology in forensic science . Since then there have been numerous studies undertaken which use Raman spectroscopy in a forensic context.…”

Attenuated Total Reflectance-FT-IR Spectroscopy for Gunshot Residue Analysis: Potential for Ammunition Determination

“…Additionally, the technique offers a combination of unique features such as portability, database search functionality, and multivariate analysis capabilities. Applications of FT-IR to forensic chemistry include identification of paint, explosives, smokeless gunpowder propellant, and illicit drugs. − Previous investigations of GSR by FT-IR were focused on qualitative chemical composition and shooting distance determinations. − In the present study, FT-IR spectra were collected from GSR particles originating from three different firearm–ammunition combinations. Preliminary results indicate that the new technique is more comprehensive than all currently accepted and innovative methods of GSR identification.…”