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Evidence Analysis:

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Photonics' Growing Role in Solving Major Crimes

Michael D. Wheeler, News Editor

For years, forensic scientists relied on chemical tests and microscopes to examine evidence gathered at crime scenes. Such techniques often provided inconclusive results or resulted in the destruction or contamination of evidence. By the mid 80s, crime labs throughout the US and abroad began embracing more sophisticated technology, including UV and Fourier transform infrared (FTIR) spectroscopy. Now, scientists can determine the origin of a bomb from only a trace of residue or determine the make and year of a car from a paint chip retrieved at an accident. DNA evidence from a drop of blood...Read full article

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    Published: November 1998
    FeaturesMicroscopy

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