Detection of Latent Fingerprints and Palmprints on Latex Gloves Using Chemical Methods

Abstract

The purpose of this research was to find suitable conditions for collecting latent fingerprints and palmprints on rubber gloves by studying three factors: types of rubber gloves (blue and purple nitrile gloves and white natural gloves); storage periods (immediate, 12, 24, 48, and 72 hours); and chemical method (wet powder, ninhydrin, indanedione/Zn, and cyanoacrylate). In addition, the surface of the rubber gloves was studied. and Latent fingerprints and palmprints were compared for identification purposes. The results of the study showed that the three types of rubber gloves that could be collected using the wet powder method at the periods of the immediate and 12 hours periods show the best latent fingerprints and palmprints. From the study of the surfaces of the fingers and palms of the three types of rubber gloves, comparing before and after the experiment using scanning electron microscopy (SEM), it was found that the wet powder method did not damage the surface of the rubber gloves. moreover, for the comparison the latent fingerprints and palmprints collected with the tenprints and the right and left palms of the researchers and volunteers using the forensic compared software (FCS) program found that minutiae points could be used. Verification could be used to confirm the identity of the person.