Review-Dusting+for+Prints

Earlier in the year, you learned how to using black powder to dust for a latent print.


 * [[image:supplies.png width="189" height="259"]] || Obtain a large sheet of newspaper. Spread the sheet of newspaper over your work area to facilitate clean up afterward. You will need the following supplies:
 * Camel hair brush
 * Carbon black powder
 * Tape
 * Magnifying glass
 * Index card (for mounting the print)
 * Print from crime scene ||
 * [[image:DSCN2121.JPG width="190" height="139"]] || Use the brush specified for fine carbon black powder. Make sure it is clean and the bristles are separated from each other. [[image:powder.jpg width="36" height="39" align="right"]]Dip the brush in the powder and lightly dust ABOVE the area of the slide containing the print. (do this over the specified container to collect excess dusting powder)

DO NOT ACTUALLY TOUCH THE BRUSH TO THE PRINT....AS THIS MAY DAMAGE YOUR PRINT! ||
 * || Distribute the powder evenly over the surface that contains the print. If possible pick up the object that carries the print and tap the edge of the object to uniformly distribute the dusting powder. ||
 * || After all of the print is developed remove the excess powder by taping the slide over the specified container. ||
 * || Next lift the print from the slide to an index card, unroll about 5” to 6” of tape and place the end to the right of the thumbprint on the slide and allow the tape to cover the whole print. Slide a thumb over the tape and smooth it down over the print to force out air bubbles. ||
 * || The print can be removed by pulling up on the corner edge of the tape and then placing the lifted print on the evidence card (in the same manner as the tape was placed over the dusted latent print). Make sure the tape is secure. Label the note card. ||