IAI LATENT PRINT CERTIFICATION TEST ACTUAL 2025/2026 QUESTIONS AND 100% CORRECT ANSWERS

IAI LATENT PRINT CERTIFICATION TEST ACTUAL 2025/2026 QUESTIONS AND 100% 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 examinationGentian 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 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