IAI Latent Print Examiner Certification Prep Complete
Study Questions And Answers
What sequence of latent print development techniques are used to develop prints from porous materials?
ANS DFO, Ninhydrin, Physical Developer
The final purple colored compound usually produced with the treatment of Ninydrin is called: ANS
Ruhemann's Purple
What latent print development technique is used to process nonporous materials that are wet? ANS
Small Particle Reagent
A dye which stains protein present in blood to give a blue-black product ANS Amido Black
The following types of fingerprints will fluoresce under the appropriate illumination: ANS - Natural
latent prints
- Some types of contamination arising from the environment & subsequently deposited in fingerprints
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: ANS Adhesive surfaces
Alternate process name(s) for Gentian Violet ANS - Crystal Violet
- Methyl Violet
Alternative process name for Amido Black ANS Naphthalene Black
Iodine vapor is physically absorbed by latent fingerprint deposits & often fades unless fixed. What color
image is formed using iodine vapor? ANS Brown
Gentian Violet can interfere with the forensic examination of: ANS - Handwriting
- Body fluids
- Ink
,Ninhydrin is a general purpose fingerprint reagent for paper & some other porous surfaces. What
component of a fingerprint deposit does it react with? ANS Amino Acids
How long does it generally take for ninhydrin treated prints to fully develop naturally? ANS Several
weeks
The development of Ninhydrin treated prints may be accelerated with the use of: ANS Heating &
Humidification
Ninhydrin, which uses a Freon solvent, virtually eliminates the following problem when processing
porous materials for latent prints? ANS Ink running
Ninhydrin may be applied using the following methods: ANS - Dipping
- Brushing
- Spraying
Physical Developer (PD) is what kind of aqueous reagent? ANS Silver-based
Physical Developer reacts with components of sebaceous sweat to form what colored deposit? ANS
Grey-Silver
Physical Developer is a very effective reagent for developing latent fingerprints on paper which has been:
ANS wetted
These ___ flake powders have been shown to be more sensitive than most other types of powders: ANS
Aluminum
Which latent print development technique was replaced by the Ninhydrin/ Physical Developer
combination for treating porous materials for latent prints? ANS Silver Nitrate
Silver Nitrate reacts with what component present in fingerprint deposits? ANS Chlorides
,Small Particle Reagents (SPR) is a latent print development technique that may be used on all non-porous
surfaces including those which are: ANS Wet
What does Small Particle Reagent adhere to in the fingerprint deposit? ANS Fats
Small Particle Reagent is comprised of what fine particles? ANS Molybdenum Disulphide
Small Particle Reagent forms what color deposit? ANS Grey
The best latent print development technique for non-porous surfaces which are contaminated with grease,
food or dried deposits of soft drinks is? ANS Sudan Black
An alternate process name for superglue is: ANS Cyanoacrylate
Superglue polmerises on some latent fingerprints to produce what colored deposit? ANS White
Superglue is thought to react primarily with what component in the latent print deposit? ANS Water
Superglue is most suitable for what kinds of surfaces? ANS Non-porous
Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals & the
deposition of thin metal films. Thin layers of what metal is used for this process? ANS Gold & Zinc
Vacuum Metal Deposition is particularly suitable on what surfaces: ANS Polythene Plastic
This fingerprint development technique reacts more intensely with older fingerprints thereby making it
possible to determine the relative age of a latent print: ANS It is impossible to determine the age of a
fingerprint by observation of it's reaction with a fingerprint detection process.
, ___ was employed at the Central Police Department at La Plata, Argentina & installed the French
Bertillon Anthropometric Identification System. ANS Juan Vucetich
In 1892 who contributed to the the first murder solved by fingerprints (Rojas Murder, Argentina)? ANS
Juan Vucetich
A fingerprint classification without whorls would be: ANS 1/1
A fingerprint classification with all whorls would be: ANS 32/32
The initial suggestion associating the identification of fingerprints found at crime scenes with fingerprint
impressions in a collection is credited to: ANS Dr. Henry Faulds
___ was credited for his practical interest in fingerprints in India as a means of identifying workers to
ensure that payment of wages was not duplicated: ANS Sir Edward Henry
The first person to confirm ridge permanency was: ANS Sir William Herschel
This person is known as the "Father of Canadian Fingerprinting" ANS Edward Foster
The first american fingerprint lecturer was: ANS Mary Holland
The use of magnetic fingerprinting was first reported by: ANS H. MacDonald
In 1982, the U.S. Army Criminal Investigation Laboratory in Japan introduced which novel procedure for
processing evidence for latent prints? ANS Superglue
___ reacts with amino acids in the fingerprint deposit: ANS Ninhydrin
Freon 113 (trichlorotirfluoroethane) is a solvent that has been used to produce: ANS Ninhydrin
Study Questions And Answers
What sequence of latent print development techniques are used to develop prints from porous materials?
ANS DFO, Ninhydrin, Physical Developer
The final purple colored compound usually produced with the treatment of Ninydrin is called: ANS
Ruhemann's Purple
What latent print development technique is used to process nonporous materials that are wet? ANS
Small Particle Reagent
A dye which stains protein present in blood to give a blue-black product ANS Amido Black
The following types of fingerprints will fluoresce under the appropriate illumination: ANS - Natural
latent prints
- Some types of contamination arising from the environment & subsequently deposited in fingerprints
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: ANS Adhesive surfaces
Alternate process name(s) for Gentian Violet ANS - Crystal Violet
- Methyl Violet
Alternative process name for Amido Black ANS Naphthalene Black
Iodine vapor is physically absorbed by latent fingerprint deposits & often fades unless fixed. What color
image is formed using iodine vapor? ANS Brown
Gentian Violet can interfere with the forensic examination of: ANS - Handwriting
- Body fluids
- Ink
,Ninhydrin is a general purpose fingerprint reagent for paper & some other porous surfaces. What
component of a fingerprint deposit does it react with? ANS Amino Acids
How long does it generally take for ninhydrin treated prints to fully develop naturally? ANS Several
weeks
The development of Ninhydrin treated prints may be accelerated with the use of: ANS Heating &
Humidification
Ninhydrin, which uses a Freon solvent, virtually eliminates the following problem when processing
porous materials for latent prints? ANS Ink running
Ninhydrin may be applied using the following methods: ANS - Dipping
- Brushing
- Spraying
Physical Developer (PD) is what kind of aqueous reagent? ANS Silver-based
Physical Developer reacts with components of sebaceous sweat to form what colored deposit? ANS
Grey-Silver
Physical Developer is a very effective reagent for developing latent fingerprints on paper which has been:
ANS wetted
These ___ flake powders have been shown to be more sensitive than most other types of powders: ANS
Aluminum
Which latent print development technique was replaced by the Ninhydrin/ Physical Developer
combination for treating porous materials for latent prints? ANS Silver Nitrate
Silver Nitrate reacts with what component present in fingerprint deposits? ANS Chlorides
,Small Particle Reagents (SPR) is a latent print development technique that may be used on all non-porous
surfaces including those which are: ANS Wet
What does Small Particle Reagent adhere to in the fingerprint deposit? ANS Fats
Small Particle Reagent is comprised of what fine particles? ANS Molybdenum Disulphide
Small Particle Reagent forms what color deposit? ANS Grey
The best latent print development technique for non-porous surfaces which are contaminated with grease,
food or dried deposits of soft drinks is? ANS Sudan Black
An alternate process name for superglue is: ANS Cyanoacrylate
Superglue polmerises on some latent fingerprints to produce what colored deposit? ANS White
Superglue is thought to react primarily with what component in the latent print deposit? ANS Water
Superglue is most suitable for what kinds of surfaces? ANS Non-porous
Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals & the
deposition of thin metal films. Thin layers of what metal is used for this process? ANS Gold & Zinc
Vacuum Metal Deposition is particularly suitable on what surfaces: ANS Polythene Plastic
This fingerprint development technique reacts more intensely with older fingerprints thereby making it
possible to determine the relative age of a latent print: ANS It is impossible to determine the age of a
fingerprint by observation of it's reaction with a fingerprint detection process.
, ___ was employed at the Central Police Department at La Plata, Argentina & installed the French
Bertillon Anthropometric Identification System. ANS Juan Vucetich
In 1892 who contributed to the the first murder solved by fingerprints (Rojas Murder, Argentina)? ANS
Juan Vucetich
A fingerprint classification without whorls would be: ANS 1/1
A fingerprint classification with all whorls would be: ANS 32/32
The initial suggestion associating the identification of fingerprints found at crime scenes with fingerprint
impressions in a collection is credited to: ANS Dr. Henry Faulds
___ was credited for his practical interest in fingerprints in India as a means of identifying workers to
ensure that payment of wages was not duplicated: ANS Sir Edward Henry
The first person to confirm ridge permanency was: ANS Sir William Herschel
This person is known as the "Father of Canadian Fingerprinting" ANS Edward Foster
The first american fingerprint lecturer was: ANS Mary Holland
The use of magnetic fingerprinting was first reported by: ANS H. MacDonald
In 1982, the U.S. Army Criminal Investigation Laboratory in Japan introduced which novel procedure for
processing evidence for latent prints? ANS Superglue
___ reacts with amino acids in the fingerprint deposit: ANS Ninhydrin
Freon 113 (trichlorotirfluoroethane) is a solvent that has been used to produce: ANS Ninhydrin
