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 />
mpress on. Place a label n the p cture to<br />
correlate the mpress on w th cr me scene<br />
notes and general photographs.<br />
Images should be taken us ng a 35 mm or<br />
medium-format film camera. Low-cost<br />
digital cameras do not provide sufficient<br />
mage deta l for exam nat on-qual ty<br />
photographs. Use a manual-focus<br />
camera. If the shoe pr nt s made from a<br />
colored substance (e.g., blood), color film<br />
may be preferable to black and wh te. In<br />
most amb ent-l ght s tuat ons, use ISO<br />
100 film. Use ISO 200 or 400 film, if<br />
necessary.<br />
Place the camera on a tr pod and pos t on<br />
t d rectly over the mpress on. Adjust the<br />
he ght <strong>of</strong> the camera, and f poss ble, use<br />
a normal lens (50 mm for a 35 mm<br />
camera). F ll the frame w th the<br />
mpress on and scale. Pos t on the<br />
camera so the film plane is parallel to the<br />
mpress on.<br />
Set the f-stop on f/16 or f/22 for a greater<br />
depth <strong>of</strong> field.<br />
Attach an electronic flash with a long<br />
extens on cord to the camera.<br />
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