Latent Print Processing

Question 1

Fingerprints are the impressions that are left by___

Answer 1

the friction ridge detail on human fingers

Question 2

Latent print residue is comprised primarily of ____ (4)

Answer 2

proteins, amino acids, lipids, water

Question 3

What chemicals are used to recover finger prints? (5)

Answer 3

Super glue, Oil Red O, ninhydrin, R6G, Indanedione

Question 4

What are the 3 common fingerprint patterns and % for each?

Answer 4

Loop 60%
Whirl 35%
Arch 5%

Question 5

Minutia points are ___

Answer 5

major features of fingerprints that are used in matching fingerprints

Question 6

Latent prints are __

Answer 6

invisible to the naked eye and developed with powders and chemicals

Question 7

Patent Prints can be __

Answer 7

seen with the naked eye usually in a substance (blood, ink)

Question 8

Plastic prints are fingerprints that made an ___

Answer 8

impressions or indentation (plaster, clay)

Question 9

Porous surfaces include (1):

Answer 9

paper

Question 10

Non porous surfaces include:

Answer 10

glass, plastic

Question 11

What powders can be used to develop prints (3)?

Answer 11

Mag, conventional, fluorescent

Question 12

What type of lighting is used to discover prints with a flashlight?

Answer 12

Oblique lighting

Question 13

CSAs are responsible for the ___ level of latent print suitability

Answer 13

recovery

Question 14

Once ridge detail is developed, the powder processed print is ____ with fingerprint tape and placed on a ____

Answer 14

tape lifted
latent print card

Question 15

How is a latent print labeled?

Answer 15

LP1 (etc. )