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Forensic labs are often called in to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances: Presumptive tests (such as color tests) give only an indication of which type of substance is present -- but they can't specifically identify the substance. Confirmatory tests (such as gas chromatography/mass spectrometry) are more specific and can determine the precise identity of the substance.

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Q: How do forensic scientists analyze unknown powders?
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Forensic drug testing is to identify unknown powders, liquids and pills that may be illicit drugs. There are basically two categories of forensic tests used to analyze drugs and other unknown substances. They are Presumptive tests and Confirmatory tests.


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Forensic scientists use a lot of computer technology, microscopes, and they draw what they see a lot. They also use kits for discovering finger prints, ultra violet lights or blacklights to see unknown substances on a scene (semen, saliva, blood)


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