1*Assistant Professor, Forensic Science Department, Renaissance University, Indore
This study was conducted for development of fingerprints that are invisible to the naked eye using nanopowder of titanium dioxide. The powder technique is very efficient over non porous surfaces and there are a wide variety of latent fingerprint development powders of different size, color and with different fluorescence. The powder method involves the application of fine particles over the latent fingerprint by dusting method using camel or squirrel hair-brush. The powder cling to the ridges and remains unadhered to the valley portion and the powder being colorful is clearly visible to the eye that makes the latent print visible. This study is based on developing latent fingerprints with forenscope and with nanopowder of titanium dioxide. Slides containing latent fingerprint were first examined under forenscope and then were developed using titanium dioxide nanopowder by dusting method and then seen under trasoscan. This procedure went through 50 days. For analysis the ridge characteristics were taken as parameters for visibility of the developed prints. The result showed that both methods were useful in developing latent images upto fifty days and in both Forenscope has proven more convenient and gave better results. Based on the study it could be concluded that nanopowder of titanium dioxide is useful in developing latent fingerprint over glass surface and the forenscope has some advantages over powder development method as it do not destroy the print while developing them.
Keywords: latent fingerprint; nanopowder; titanium dioxide; forenscope; trasoscan.
How to cite this article: Kushwah R. Latent fingerprints development using nanopowder (titanium dioxide). Int J Drug Deliv Technol. 2026;16(15s): 276-282. DOI: 10.25258/ijddt.16.15s.35
Source of support: Nil.
Conflict of interest: None