UAlbany Professor Develops Forensic Device
University at Albany associate professor of chemistry Igor Lednev has developed a novel, easy-to-use approach for crime scene investigators (CSIs) to identify body fluids at crime scenes. Utilizing Raman spectroscopy, Lednev's approach will allow investigators to quickly make on-field, confirmatory identifications of body fluids.
The portable spectrometers -- devices used to measure properties of light over a specific portion of the electromagnetic spectrum -- will be capable of differentiating between human and animal species, and determining the age of a biological stain.
Unlike many tests currently in use by crime investigators for species identification, Raman spectroscopy doesn't destroy the samples used. The approach allows for the preservation of material for future DNA analysis. Another advantage of Lednev's approach is the fact that portable Raman instruments exist, meaning devices can be used by CSIs in the field. The end result is faster turnaround times for investigators.