Deck 10: Physical Processing Methods

Question 1

On what surfaces are fingerprint powders used?

Answer 1

a. Dry
b. Nonporous

Question 2

What is the first step in processing a surface with fingerprint powder?

Answer 2

Visual inspection with oblique white light

Question 3

What must be done before the powder-enhanced print is lifted?

Answer 3

Photographed in situ

Question 4

What surface features should be taken into consideration before deciding what fingerprint powder and lifting method to use?

Question 5

"Dusting for prints" is the least sensitive fingerprint processing technique.

Question 6

What do the fingerprint powder granules adhere to in the latent print?

Question 7

Are fingerprint powders recommended for processing items of evidence? Why or why not?

Question 8

What are non-magnetic fingerprint powders composed of?

Question 9

How is a color of fingerprint powder chosen?

Question 10

What are the four common types of fingerprint powders?

Question 11

What factors contribute to how well fingerprint powder adheres to the latent fingerprint?

Question 12

What type of brush is used to apply granular fingerprint powders?

Question 13

With what materials are powdered fingerprints lifted from a surface?

Question 14

On what surface is silicone rubber lifting material the preferred method for lifting powdered fingerprints?

Question 15

List the process for developing fingerprints at crime scenes with granular powders.

Question 16

Which type of granular powder can be used on both light and dark surfaces?

Question 17

How are magnetic powders applied?

Question 18

What are the advantages to using magnetic powder?

Question 19

What are the disadvantages to using magnetic fingerprint powder?

Question 20

What type of powder is most useful for delicate dusting or on items that cannot get wet with chemical reagents such as computers, electronics and cell phones?

Question 21

What is bichromatic fingerprint powder? What is it used for?

Question 22

How are fluorescent fingerprint powders visualized?

Question 23

Which type of powder is most commonly used in Europe and has been shown to be the most effective powder for fingerprint development?

Question 24

On what surfaces are powder suspensions used?