鑑識科學

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Ecstasy tablet In the field of forensic sciences, Raman spectroscopy is predominantly used for the unambiguous identification of unknown substances. Given that Raman is a non-destructive technique, it has the advantage of being able to identify trace amounts of substances without compromising the evidence in any way, even allowing identification to be performed through a glass or plastic container. The high sensitivity, confocal performance and imaging capabilities of the inVia Raman microscope are key requirements, where enforcement agencies require detailed information on materials to obtain a successful prosecution. Renishaw's Raman microscopes have gained international recognition for successfully completing difficult forensic investigations such as distinguishing active drug forms and cutting agents from illicit materials, and proving which ink was deposited first in 'crossed ink' document authentication cases.

The above image shows the contamination distribution in an ecstasy tablet, revealed using StreamLine™ Plus fast Raman imaging capability. The information on contaminants and cutting agents can assist enforcement agencies in identifying the source of illicit substances. For more information of this, and examples of FT-IR Raman analysis of a paint chip sample from a motor vehicle collision case-study, please download the relevant document.

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