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Paint examinations.(Evidence Examinations)
A comparison of the layer structure of a questioned paint sample can be compared with known sources. The sequence, relative thickness, color, texture, number, and chemical composition of each of the layers can be compared.
The color, manufacturer, model, and model year of an automobile can be determined from a paint chip. Sourcing automotive paints is limited to factory-applied, original automotive paint.
Paint on safes, vaults, windowsills, and door frames can be transferred to and from tools. A comparison can be made between the paint from an object and the paint on a tool.
The Laboratory will not examine evidence to authenticate fine art or historical artifacts or to source spray or architectural paints.
Questions concerning paint evidence should be directed to 703-632-8441. Follow the Evidence Submission directions including Requesting Evidence Examinations and Packaging and Shipping Evidence.
* Search the accident or crime scene and the victim(s)' personal effects to locate paint fragments. Paint fragments are often found in the clothing of a hit-and-run ...
- 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...
- Firearms 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. * All firearms must be unloaded. * The firearm should be submitted...
- Lubricants 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. * Submit entire items (e.g., clothing) when possible. Air-dry...
Source: HighBeam Research, Paint examinations.(Evidence Examinations)