Illicit and Counterfeit Drug Analysis by Morphologically Directed Raman Spectroscopy

Area of Science:

• Forensic Science
• Analytical Chemistry
• Spectroscopy

Background:

• Illicit and counterfeit drugs pose significant challenges in forensic analysis.
• Traditional methods may lack the comprehensive information needed for attribution and history.
• A need exists for advanced techniques to analyze complex drug mixtures.

Purpose of the Study:

• To introduce and demonstrate Morphologically Directed Raman Spectroscopy (MDRS) as a novel forensic tool.
• To showcase the capability of MDRS in analyzing diverse illicit and counterfeit drug samples.
• To highlight the utility of MDRS in forensic investigations and legal proceedings.

Main Methods:

• MDRS integrates automated particle imaging with Raman microspectroscopy.
• Automated imaging guides the selection of particles for detailed spectral analysis.
• This combined approach yields both physical and chemical information from sample components.

Main Results:

• MDRS was applied to four distinct case studies involving illicit and counterfeit drugs.
• Analyses included multicomponent mixtures for source attribution, trace particle detection, synthetic cathinones, and counterfeit pharmaceuticals.
• The technique provided insights into sample composition, manufacturing, and history.

Conclusions:

• MDRS is a powerful and versatile tool for the forensic analysis of illicit and counterfeit drugs.
• The method offers detailed physical and chemical characterization crucial for forensic investigations.
• MDRS supports comparative source attribution and the understanding of drug sample origins and production.