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Fingerprint Sciences: Latent Fingerprint Development Methods
Published:
Questions
30
Duration
30 min
Faculty-reviewed
0
Updated
26 May 2026
Practice with national-level exam (FACT, FACT Plus, NET, CUET, etc.) mocks, learn from structured notes, and get your doubts solved in one place.
Published:
Questions
30
Duration
30 min
Faculty-reviewed
0
Updated
26 May 2026
Score, per-question explanations and topic breakdown shown right after you submit.
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UGC-NET Forensic Science Paper II Unit VIII drill on the chemistry, substrate specificity, sequencing, and operational parameters of latent fingerprint development. The set covers the full technique ladder: powder methods (conventional black, white, grey, magnetic, and fluorescent powders and their substrate matching rules), ninhydrin and its Ruhemann's purple amino-acid product on porous surfaces, DFO (1,8-diazafluoren-9-one) as a fluorescent predecessor to ninhydrin in the reagent sequence, 1,2-indanedione as a zinc-complex fluorescent agent for aged prints on paper, cyanoacrylate (superglue) fuming for non-porous surfaces, vacuum metal deposition (VMD) with sequential gold and zinc deposition on polymer films, Reflected UV Imaging System (RUVIS) as a non-destructive optical screening tool, silver nitrate's chloride-ion reaction on porous substrates, iodine fuming as a temporary lipid-reactive method, and Small Particle Reagent (SPR) for wet or submerged surfaces. Substrate classification (porous, non-porous, semi-porous) and the recommended processing sequence (optical first, then non-destructive, then destructive) are tested throughout.
Aimed at UGC-NET Forensic Science Paper II aspirants targeting Unit VIII (Fingerprints), NFSU MSc Forensic Science students, CFSL Chandigarh and state FSL fingerprint-section trainees, and NCRB CFPB candidates preparing for the national fingerprint bureau proficiency examination.
Topics covered:
Work through each question before checking the explanation, and revisit every wrong answer against the cited Champod et al., Lee and Gaensslen, and SWGFAST references. Allow 30 minutes.
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