Handbook of Forensic Services (pdf) - FBI
Handbook of Forensic Services (pdf) - FBI
Handbook of Forensic Services (pdf) - FBI
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<strong>Handbook</strong> <strong>of</strong> Forens c Serv ces 2007<br />
Soil Examinations<br />
So l exam nat ons can determ ne whether so ls<br />
share a common or g n by compar ng color,<br />
texture, and compos t on.<br />
Questions concerning soil evidence should be<br />
directed to 703-632-8449. Follow the ev dence<br />
subm ss on d rect ons, nclud ng Requesting<br />
Evidence Examinations and Packaging and<br />
Shipping Evidence.<br />
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Collect so l samples as soon as poss ble,<br />
because the so l at the cr me scene can<br />
change dramat cally.<br />
Collect so l samples from the mmed ate cr me<br />
scene area and from the log cal access and<br />
escape route(s).<br />
Collect so l samples where there are<br />
not ceable changes n color, texture, and<br />
compos t on.<br />
Collect so l samples at a depth that s<br />
cons stent w th the depth from wh ch the<br />
quest oned so l may have or g nated.<br />
If poss ble, collect so l samples from al b<br />
areas such as the yard or work area <strong>of</strong> the<br />
suspect(s).<br />
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