IAI TEST PREP QUESTIONS WITH 100% CORRECT ANSWERS.
What sequence of latent print development techniques are used to develop prints from porous
materials? - -DFO, Ninhydrin, Physical Developer
-The final purple colored compound usually produced with the treatment of Ninhydrin - -Ruhlmann’s
Purple
-What latent print development technique is used to process nonporous material that are wet? - -Small
Particle Reagent
-A dye which stains protein present in blood to give a blue-black product - -Amino Black
-The following types of fingerprints will fluoresce under appropriate illumination - -Natural latent
fingerprints and fingerprints contaminated from the environment
-One of the first processes used in a sequence of a fingerprint examination - -Fluorescence Examination
-Gentian Violet is a dye which stains fatty constituents of sebaceous sweat producing an intense purple
image. It is effective for the development of what kind of prints? - -Adhesive surface of adhesive tapes
-Alternative process name for Amido Black - -Naphthalene Black
-Iodine vapor is physically absorbed by latent fingerprint deposits and often fades unless fixed. What
color image is formed using iodine vapor? - -Brown
-What can interfere with the forensic examination for handwriting, body fluids, and ink? - -Gentian
Violet
, -Ninhydrin is a general-purpose fingerprint reagent for paper and some other porous surfaces. What
component of a fingerprint deposit does it react with? - -Amino acids
-How long does it generally take for Ninhydrin treated prints to fully develop naturally? - -Several weeks
-The development of Ninhydrin treated prints may be accelerated with the use of: - -Heating and
humidification
-Ninhydrin which uses a Freon solvent virtually eliminates the following problem when processing
porous materials for latent prints - -Ink running
-What is applied using the method of dipping, brushing, swabbing or spraying? - -Ninhydrin
-Physical developer (PD) is what kind of aqueous reagent? - -silver-based
-Physical developer reacts with components of sebaceous sweat to form what colored deposit? - -Grey-
silver
-Physical developer is a very effective reagent for developing latent fingerprints on paper which has
been? - -Wetted
-These flake powders have been shown to be more sensitive than most types of powders - -Aluminum
-Which latent print development technique was replaced by the Ninhydrin/Physical Developer
combination for treating porous materials - -Silver Nitrate
-Silver Nitrate reacts with what component present in fingerprint deposits - -Chlorides
, -Small particle reagent (SPR) is a latent print development technique that may be used on all non-
porous surfaces including those which are - -wet
-What does Small Particle Reagent adhere to in the fingerprint deposit? - -Fats
-Small Particle Reagent is comprised of what fine particles? - -Molybdenum Desulphated
-Small Particle Reagent forms what color deposit? - -Grey
-The best latent print development technique for use on non-porous surfaces which are contaminated
with grease, foodstuffs, or dried deposits of soft drinks - -Sudan Black
-An alternative process name for superglue is - -Cyanoacrylate
-Superglue polymerizes on some latent fingerprints to produce what colored deposit - -White
-Superglue is thought to react primarily with what component in that latent print deposit - -water
-Superglue is most suitable for what kinds of surfaces? - -non-porous
-Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals and the
deposition of this metal films. The layers of what metal is used for this process? - -Gold and zinc
-Vacuum Metal Deposition is particularly suitable on what surfaces? - -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 - -Rhodamine 6G
What sequence of latent print development techniques are used to develop prints from porous
materials? - -DFO, Ninhydrin, Physical Developer
-The final purple colored compound usually produced with the treatment of Ninhydrin - -Ruhlmann’s
Purple
-What latent print development technique is used to process nonporous material that are wet? - -Small
Particle Reagent
-A dye which stains protein present in blood to give a blue-black product - -Amino Black
-The following types of fingerprints will fluoresce under appropriate illumination - -Natural latent
fingerprints and fingerprints contaminated from the environment
-One of the first processes used in a sequence of a fingerprint examination - -Fluorescence Examination
-Gentian Violet is a dye which stains fatty constituents of sebaceous sweat producing an intense purple
image. It is effective for the development of what kind of prints? - -Adhesive surface of adhesive tapes
-Alternative process name for Amido Black - -Naphthalene Black
-Iodine vapor is physically absorbed by latent fingerprint deposits and often fades unless fixed. What
color image is formed using iodine vapor? - -Brown
-What can interfere with the forensic examination for handwriting, body fluids, and ink? - -Gentian
Violet
, -Ninhydrin is a general-purpose fingerprint reagent for paper and some other porous surfaces. What
component of a fingerprint deposit does it react with? - -Amino acids
-How long does it generally take for Ninhydrin treated prints to fully develop naturally? - -Several weeks
-The development of Ninhydrin treated prints may be accelerated with the use of: - -Heating and
humidification
-Ninhydrin which uses a Freon solvent virtually eliminates the following problem when processing
porous materials for latent prints - -Ink running
-What is applied using the method of dipping, brushing, swabbing or spraying? - -Ninhydrin
-Physical developer (PD) is what kind of aqueous reagent? - -silver-based
-Physical developer reacts with components of sebaceous sweat to form what colored deposit? - -Grey-
silver
-Physical developer is a very effective reagent for developing latent fingerprints on paper which has
been? - -Wetted
-These flake powders have been shown to be more sensitive than most types of powders - -Aluminum
-Which latent print development technique was replaced by the Ninhydrin/Physical Developer
combination for treating porous materials - -Silver Nitrate
-Silver Nitrate reacts with what component present in fingerprint deposits - -Chlorides
, -Small particle reagent (SPR) is a latent print development technique that may be used on all non-
porous surfaces including those which are - -wet
-What does Small Particle Reagent adhere to in the fingerprint deposit? - -Fats
-Small Particle Reagent is comprised of what fine particles? - -Molybdenum Desulphated
-Small Particle Reagent forms what color deposit? - -Grey
-The best latent print development technique for use on non-porous surfaces which are contaminated
with grease, foodstuffs, or dried deposits of soft drinks - -Sudan Black
-An alternative process name for superglue is - -Cyanoacrylate
-Superglue polymerizes on some latent fingerprints to produce what colored deposit - -White
-Superglue is thought to react primarily with what component in that latent print deposit - -water
-Superglue is most suitable for what kinds of surfaces? - -non-porous
-Vacuum Metal Deposition utilizes vacuum-coating technology for the evaporation of metals and the
deposition of this metal films. The layers of what metal is used for this process? - -Gold and zinc
-Vacuum Metal Deposition is particularly suitable on what surfaces? - -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 - -Rhodamine 6G
