Latent Print Development

Question 1

_____ impressions are impressions left in a tacky substrate such as putty or wet paint.

Answer 1

Plastic Impressions

Question 2

_____ means hidden. This requires processing using a technique to visualize.

Answer 2

Latent

Question 3

A _____ substrate allows the deposit to sit on top of the outer most surface and are easily destroyed or lost.

Answer 3

Non-Porous

Question 4

A _____ substrate allows the deposit to be absorbed into the substrate and become more stable.

Answer 4

Porous

Question 5

Fumes from the active ingredient of Cyanoacrylate ester _____ moisture left by an impression.

Answer 5

Polymerize

Question 6

Friction Ridges which have been fumed with Cyanoacrylate appear _____ in color.

Answer 6

White

Question 7

Iodine catalyzes to _____

Answer 7

Oil or Fat

Question 8

The reaction color of Ninhydrin and Amino Acids is known as ______.

Answer 8

Ruhemann Purple

Question 9

Ninhydrin catalyzes to _____.

Answer 9

Amino Acids

Question 10

Ninhydrin is an amino acid-developing reagent that is applied by ___, ____, or ____.

Answer 10

Dipping, brushing, or spraying

Question 11

_____ is known as the latent print examiner’s “Chemical Workhorse”.

Answer 11

Ninhydrin

Question 12

Silver Nitrate catalyzes to ____.

Answer 12

Sodium Chloride (Salt)

Question 13

Fingerprint ridges developed with silver nitrate appear __________.

Answer 13

Reddish-Brown