IAI LATENT PRINT CERTIFICATION EXAM 2024
ACTUAL EXAM COMPLETE 250 QUESTIONS WITH
DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) ALREADY GRADED A
Iodine vapour is physically absorbed by latent
fingerprint deposits and often fades unless fixed.
What color image is formed using iodine vapour?
- CORRECT ANSWER >>>>Brown
Gentian Violet can interfere with the forensic
examination for: - CORRECT ANSWER >>>>1.
Handwriting
2. Body fluids
3. Ink
Ninhydrin is a general purpose fingerprint reagent
for paper and some other porous surfaces. What
,2|Page
component of a fingerprint deposit does it react
with? - CORRECT ANSWER >>>>Amino Acids
How long does it generally take for Ninhydrin
treated prints to naturally, fully develop -
CORRECT ANSWER >>>>Several weeks
The development of Ninhydrin treated prints may
be accelerated with the use of? - CORRECT
ANSWER >>>>Heating and Humidification
Ninhydrin which uses a Freon solvent virtually
eliminates the following problem when
processing porous materials for latent prints? -
CORRECT ANSWER >>>>Ink running
Ninhydrin may be applied using what methods? -
CORRECT ANSWER >>>>1. Dipping
2. Brushing
3. Spraying
Physical Developer (PD) is what kind of aqueous
reagent? - CORRECT ANSWER >>>>Silver-based
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Physical Developer reacts with components of
sebaceous sweat to form what colored deposit? -
CORRECT ANSWER >>>>Grey-silver
Physical Developer is a very effective reagent for
developing latent fingerprints on paper which has
been: - CORRECT ANSWER >>>>Wetted
These flake powders have been shown to be
more sensitive than most other types of powders
- CORRECT ANSWER >>>>Aluminum
Which latent print development technique was
replaced by the Ninhydrin/Physical Developer
combination for treating porous materials for
latent prints? - CORRECT ANSWER >>>>Silver
Nitrate
Silver Nitrate reacts with what component
present in fingerprint deposits? - CORRECT
ANSWER >>>>Chlorides
, 4|Page
Small Particel Reagent (SPR) is a latent print
development technique that may be used on all
non-porous surfaces including those which are ...
- CORRECT ANSWER >>>>Wet
What does Small Particle Reagent adheres to in
the fingerprint deposit? - CORRECT ANSWER
>>>>Fats
Small Particle Reagent is comprised of what fine
particles? - CORRECT ANSWER >>>>Molybdenum
Disulphide
Small Particle Reagent forms what color deposit?
- CORRECT ANSWER >>>>Grey, also white and
black
The best latent print development technique for
use on non-porous surfaces which are
contaminated with grease, foodstuffs, or dried
deposits of soft drinks - CORRECT ANSWER
>>>>Sudan Black
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