Application of Fluorescence Spectroscopy to Forensic Science

Area of Science:

• Forensic Science
• Analytical Chemistry

Background:

• Laser-based visualization has significantly advanced forensic science applications.
• Fluorescence techniques, both ultraviolet (UV) and infrared (IR), have seen increased use in forensic analysis over the past decade.

Purpose of the Study:

• To discuss the application of UV and IR fluorescence techniques in forensic science.
• To highlight the advantages of fluorescence-based methods compared to other analytical techniques.

Main Methods:

• Utilizing laser methods for visualization.
• Developing novel fluorescent dyes for fingerprint development.
• Applying fluorimetric analysis to various forensic evidence types.

Main Results:

• Significant advancements in fingerprint visualization using laser-induced fluorescence.
• Successful application of fluorescence in the characterization of inks for questioned-document analysis.
• Broad utility of fluorimetric analysis across diverse forensic samples including drugs, glass, petroleum products, and biological materials.

Conclusions:

• Fluorescence techniques, particularly when coupled with laser visualization, offer powerful analytical tools in forensic science.
• These methods provide distinct advantages over traditional techniques for analyzing various types of forensic evidence.
• Continued research and development in fluorescent dyes and laser technology promise further improvements in forensic investigations.