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Handbook of Forensic Services (pdf) - FBI

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<strong>Handbook</strong> <strong>of</strong> Forens c Serv ces 2007<br />

Questions concerning forensic facial imaging<br />

should be directed to 703-632-8194.<br />

Back to the top<br />

Glass Examinations<br />

Glass compar son exam nat ons can determ ne<br />

whether part cles <strong>of</strong> glass or g nated from a<br />

broken source <strong>of</strong> glass. Glass fracture<br />

exam nat ons can determ ne the d rect on and<br />

type <strong>of</strong> the break ng force and the sequenc ng <strong>of</strong><br />

shots.<br />

Questions concerning glass evidence should<br />

be directed to 703-632-8449. Follow the<br />

ev dence subm ss on d rect ons, nclud ng<br />

Requesting Evidence Examinations and<br />

Packaging and Shipping Evidence.<br />

Comparison<br />

ß Subm t samples <strong>of</strong> glass from each broken<br />

w ndow or source n leakpro<strong>of</strong> conta ners such<br />

as film canisters or plastic pill bottles. Do not<br />

use paper or glass conta ners.<br />

ß<br />

Subm t samples <strong>of</strong> lam nated glass (e.g.,<br />

w ndsh eld) from each s de <strong>of</strong> the glass. Label<br />

the samples “INSIDE” and “OUTSIDE” and<br />

package separately n leakpro<strong>of</strong> conta ners<br />

such as film canisters or plastic pill bottles. Do<br />

not use paper or glass conta ners.<br />

69

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