IAI LATENT PRINT CERTIFICATION TEST NEWEST 2024 ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
What sequence of latent print development techniques are used to develop prints from porous
materials? - (answer) DFO, Ninhydrin, Physical Developer
The final purple coloured compound usually produced with the treatment of Ninhydrin - (answer)
Ruhemann's Purple
What latent print development technique is used to process nonporous materials that are wet? -
(answer) Small Particle Reagent
A dye which stains protein present in blood to give a blue-black product - (answer) Amido Black
The following types of fingerprints will fluoresce under appropriate illumination - (answer) 1. Natural
latent fingerprints
2. Some types of contamination arising from the environment and subsequently deposited in
fingerprints
May be one of the first processes used in a sequence of a fingerprint examination - (answer)
Fluorescence examination
Gentian violet is a dye which stains fatty constituents of sebaceous sweat producing an intense purple
image. It is very effective for the development of latent fingerprints on... - (answer) Adhesive surface of
adhesive tapes
Alternative process names for Gentian Violet - (answer) 1. Crystal Violet
2. Methyl Violet
Alternative process name for Amido Black - (answer) Naphthalene Black
Iodine vapour is physically absorbed by latent fingerprint deposits and often fades unless fixed. What
color image is formed using iodine vapour? - (answer) Brown
,IAI LATENT PRINT CERTIFICATION TEST NEWEST 2024 ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
Gentian Violet can interfere with the forensic examination for: - (answer) 1. Handwriting
2. Body fluids
3. Ink
Ninhydrin is a general purpose fingerprint reagent for paper and some other porous surfaces. What
component of a fingerprint deposit does it react with? - (answer) Amino Acids
How long does it generally take for Ninhydrin treated prints to naturally, fully develop - (answer)
Several weeks
The development of Ninhydrin treated prints may be accelerated with the use of? - (answer) Heating
and Humidification
Ninhydrin which uses a Freon solvent virtually eliminates the following problem when processing porous
materials for latent prints? - (answer) Ink running
Ninhydrin may be applied using what methods? - (answer) 1. Dipping
2. Brushing
3. Spraying
Physical Developer (PD) is what kind of aqueous reagent? - (answer) Silver-based
Physical Developer reacts with components of sebaceous sweat to form what colored deposit? -
(answer) Grey-silver
Physical Developer is a very effective reagent for developing latent fingerprints on paper which has been:
- (answer) Wetted
These flake powders have been shown to be more sensitive than most other types of powders -
(answer) Aluminum
, IAI LATENT PRINT CERTIFICATION TEST NEWEST 2024 ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
Which latent print development technique was replaced by the Ninhydrin/Physical Developer
combination for treating porous materials for latent prints? - (answer) Silver Nitrate
Silver Nitrate reacts with what component present in fingerprint deposits? - (answer) Chlorides
Small Particel Reagent (SPR) is a latent print development technique that may be used on all non-porous
surfaces including those which are ... - (answer) Wet
What does Small Particle Reagent adheres to in the fingerprint deposit? - (answer) Fats
Small Particle Reagent is comprised of what fine particles? - (answer) Molybdenum Disulphide
Small Particle Reagent forms what color deposit? - (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 - (answer) Sudan Black
An alternative process name for superglue - (answer) Cyanoacrylate
Superglue polymersises on some latent fingerprints to produce what colored deposit? - (answer) White
Superglue is thought to react primarily with what component in the latent print deposit? - (answer)
Water
Superglue is most suitable for what kinds of surfaces? - (answer) Non-porous
Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals and the
deposition of thin metal films. Thin layers of what metal are used for this process? - (answer) Gold and
Zinc
CORRECT ANSWERS
What sequence of latent print development techniques are used to develop prints from porous
materials? - (answer) DFO, Ninhydrin, Physical Developer
The final purple coloured compound usually produced with the treatment of Ninhydrin - (answer)
Ruhemann's Purple
What latent print development technique is used to process nonporous materials that are wet? -
(answer) Small Particle Reagent
A dye which stains protein present in blood to give a blue-black product - (answer) Amido Black
The following types of fingerprints will fluoresce under appropriate illumination - (answer) 1. Natural
latent fingerprints
2. Some types of contamination arising from the environment and subsequently deposited in
fingerprints
May be one of the first processes used in a sequence of a fingerprint examination - (answer)
Fluorescence examination
Gentian violet is a dye which stains fatty constituents of sebaceous sweat producing an intense purple
image. It is very effective for the development of latent fingerprints on... - (answer) Adhesive surface of
adhesive tapes
Alternative process names for Gentian Violet - (answer) 1. Crystal Violet
2. Methyl Violet
Alternative process name for Amido Black - (answer) Naphthalene Black
Iodine vapour is physically absorbed by latent fingerprint deposits and often fades unless fixed. What
color image is formed using iodine vapour? - (answer) Brown
,IAI LATENT PRINT CERTIFICATION TEST NEWEST 2024 ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
Gentian Violet can interfere with the forensic examination for: - (answer) 1. Handwriting
2. Body fluids
3. Ink
Ninhydrin is a general purpose fingerprint reagent for paper and some other porous surfaces. What
component of a fingerprint deposit does it react with? - (answer) Amino Acids
How long does it generally take for Ninhydrin treated prints to naturally, fully develop - (answer)
Several weeks
The development of Ninhydrin treated prints may be accelerated with the use of? - (answer) Heating
and Humidification
Ninhydrin which uses a Freon solvent virtually eliminates the following problem when processing porous
materials for latent prints? - (answer) Ink running
Ninhydrin may be applied using what methods? - (answer) 1. Dipping
2. Brushing
3. Spraying
Physical Developer (PD) is what kind of aqueous reagent? - (answer) Silver-based
Physical Developer reacts with components of sebaceous sweat to form what colored deposit? -
(answer) Grey-silver
Physical Developer is a very effective reagent for developing latent fingerprints on paper which has been:
- (answer) Wetted
These flake powders have been shown to be more sensitive than most other types of powders -
(answer) Aluminum
, IAI LATENT PRINT CERTIFICATION TEST NEWEST 2024 ACTUAL EXAM COMPLETE 100 QUESTIONS AND
CORRECT ANSWERS
Which latent print development technique was replaced by the Ninhydrin/Physical Developer
combination for treating porous materials for latent prints? - (answer) Silver Nitrate
Silver Nitrate reacts with what component present in fingerprint deposits? - (answer) Chlorides
Small Particel Reagent (SPR) is a latent print development technique that may be used on all non-porous
surfaces including those which are ... - (answer) Wet
What does Small Particle Reagent adheres to in the fingerprint deposit? - (answer) Fats
Small Particle Reagent is comprised of what fine particles? - (answer) Molybdenum Disulphide
Small Particle Reagent forms what color deposit? - (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 - (answer) Sudan Black
An alternative process name for superglue - (answer) Cyanoacrylate
Superglue polymersises on some latent fingerprints to produce what colored deposit? - (answer) White
Superglue is thought to react primarily with what component in the latent print deposit? - (answer)
Water
Superglue is most suitable for what kinds of surfaces? - (answer) Non-porous
Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals and the
deposition of thin metal films. Thin layers of what metal are used for this process? - (answer) Gold and
Zinc
