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Controlled substances examinations.(Evidence Examinations)(Brief Article)
Controlled substances examinations can establish trace-drug presence, identity, and quantity.
Bulk Drugs
The Laboratory limits the quantity of bulk drugs that it will analyze. Quantities exceeding 100 grams of marijuana or 10 grams of all other drugs including cocaine, methamphetamine, and heroin will be returned unanalyzed. The Laboratory usually only analyzes drugs seized in federal investigations.
Drug Residue
Requests for drug residue examinations on evidence will only be accepted if the evidence is properly packaged to avoid contamination. Drug residue examinations of currency are performed only on a limited basis.
Call the Laboratory at 703-632-8441 prior to submitting ...
- Abrasives examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-8441. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Employ personnel familiar with engine and machinery operations and mechanics...
- Arson examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-7641. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Ignitable liquids are volatile and easily lost through evaporation...
- Ink examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-8441. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Pack ink evidence separately from any document or surface with ink marks...
- Soil examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-7690. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Collect soil samples as soon as possible, because the soil at the crime...
- Tape examinations.(Evidence Examinations)(tape evidence)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-8441. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Whenever possible, submit tape still adhered to the substrate. This...
- Toolmark examinations.(Evidence Examinations)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-8442. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * If possible, submit the toolmarked evidence. * If it is not possible...
- Anthropological examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-7691. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Clean and air-dry bones, if possible. Pack in paper bags and wrap...
- Feather examinations.(Evidence Examinations)(Brief Article)
- Handbook of Forensic Services January 1, 2003 700+ words
...evidence should be directed to 703-632-7690. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence. * Submit feathers in heat-sealed or resealable plastic bags or paper...