IAI Certification Exam Questions and Answers
100% Verified Graded A+
1. What sequence of latent print development techniques are used to develop prints from
porous materials?
Answer: DFO, Ninhydrin, Physical Developer
2. The final purple coloured compound usually produced with the treatment of
Ninhydrin
Answer: Ruhemann's Purple
3. What latent print development technique is used to process nonporous material
that are wet?
Answer: Small Particle Reagant
4. A dye which stains protein present in blood to give a blue-black product
Answer: Amino Black
5. The following types of fingerprints will fluoresce under appropriate illumi- nation
,Answer: Natural latent fingerprints and fingerprints contaminated from the environment
6. One of the first processes used in a sequence of a fingerprint examination-
Answer: Fluorescence Examination
7. 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?
Answer: Adhesive surface of adhesive tapes
8. Alternative process name for Amido Black
Answer: Naphthalene Black
9. Iodine vapour is physically absorbed by latent fingerprint deposits and often fades
unless fixed. What color image is formed using iodine vapour?
Answer: Brown
10. What can interfere with the forensic examination for handwriting, body fluids,
and ink?
Answer: Gentian Violet
11. 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
,12. How long does it generally take for Ninhydrin treated prints to fully develop
naturally?
Answer: Several weeks
13. The development of Ninhydrin treated prints may be accelerated with the use of:
Answer: Heating and humidification
14. Ninhydrin which uses a Freon solvent virtually eliminates the following
problem when processing porous materials for latent prints
Answer: Ink running
, 15. What is applied using the method of dipping, brushing, swabbing or spray- ing?
Answer: Ninhydrin
16. Physical developer (PD) is what kind of aqueous reagent?
Answer: silver-based
17. Physical developer reacts with components of sebaceous sweat to form what
colored deposit?
Answer: Grey-silver
18. Physical developer is a very effective reagent for developing latent finger- prints
on paper which has been?
Answer: Wetted
19. These flake powders have been shown to be more sensitive than most types of
powders
Answer: Aluminum
20. Which latent print development technique was replaced by the Ninhy-
drin/Physical Developer combination for treating porous materials
Answer: Silver Nitrate
21. Silver Nitrate reacts with what component present in fingerprint deposits-
100% Verified Graded A+
1. What sequence of latent print development techniques are used to develop prints from
porous materials?
Answer: DFO, Ninhydrin, Physical Developer
2. The final purple coloured compound usually produced with the treatment of
Ninhydrin
Answer: Ruhemann's Purple
3. What latent print development technique is used to process nonporous material
that are wet?
Answer: Small Particle Reagant
4. A dye which stains protein present in blood to give a blue-black product
Answer: Amino Black
5. The following types of fingerprints will fluoresce under appropriate illumi- nation
,Answer: Natural latent fingerprints and fingerprints contaminated from the environment
6. One of the first processes used in a sequence of a fingerprint examination-
Answer: Fluorescence Examination
7. 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?
Answer: Adhesive surface of adhesive tapes
8. Alternative process name for Amido Black
Answer: Naphthalene Black
9. Iodine vapour is physically absorbed by latent fingerprint deposits and often fades
unless fixed. What color image is formed using iodine vapour?
Answer: Brown
10. What can interfere with the forensic examination for handwriting, body fluids,
and ink?
Answer: Gentian Violet
11. 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
,12. How long does it generally take for Ninhydrin treated prints to fully develop
naturally?
Answer: Several weeks
13. The development of Ninhydrin treated prints may be accelerated with the use of:
Answer: Heating and humidification
14. Ninhydrin which uses a Freon solvent virtually eliminates the following
problem when processing porous materials for latent prints
Answer: Ink running
, 15. What is applied using the method of dipping, brushing, swabbing or spray- ing?
Answer: Ninhydrin
16. Physical developer (PD) is what kind of aqueous reagent?
Answer: silver-based
17. Physical developer reacts with components of sebaceous sweat to form what
colored deposit?
Answer: Grey-silver
18. Physical developer is a very effective reagent for developing latent finger- prints
on paper which has been?
Answer: Wetted
19. These flake powders have been shown to be more sensitive than most types of
powders
Answer: Aluminum
20. Which latent print development technique was replaced by the Ninhy-
drin/Physical Developer combination for treating porous materials
Answer: Silver Nitrate
21. Silver Nitrate reacts with what component present in fingerprint deposits-
