2024 IAI CERTIFICATION EXAM ACTUAL QUESTIONS AND ANSWERS WITH COMPLETE SOLUTION.(ALREADY GRADED A+)

2024 IAI CERTIFICATION EXAM ACTUAL QUESTIONS AND ANSWERS WITH COMPLETE SOLUTION.(ALREADY GRADED A+) DFO, Ninhydrin, Physical Developer What sequence of latent print development techniques are used to develop prints from porous materials? Ruhemann's Purple The final purple coloured compound usually produced with the treatment of Ninhydrin Small Particle Reagant What latent print development technique is used to process nonporous material that are wet? Amino Black A dye which stains protein present in blood to give a blue-black product Natural latent fingerprints and fingerprints contaminated from the environment The following types of fingerprints will fluoresce under appropriate illumination Fluorescence Examination One of the first processes used in a sequence of a fingerprint examination Adhesive surface of adhesive tapes 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? Naphthalene Black Alternative process name for Amido Black Brown Iodine vapour is physically absorbed by latent fingerprint deposits and often fades unless fixed. What color image is formed using iodine vapour? Gentian Violet What can interfere with the forensic examination for handwriting, body fluids, and ink? Amino acids Ninhydrin is a general purpose fingerprint reagent for paper and some other porous surfaces. What component of a fingerprint deposit does it react with? Several weeks How long does it generally take for Ninhydrin treated prints to fully develop naturally? Heating and humidification The development of Ninhydrin treated prints may be accelerated with the use of: Ink running Ninhydrin which uses a Freon solvent virtually eliminates the following problem when processing porous materials for latent prints Ninhydrin What is applied using the method of dipping, brushing, swabbing or spraying? silver-based Physical developer (PD) is what kind of aqueous reagent? Grey-silver