The Comparative Study of the Appearance of Latent Fingerprint on Leather by Using Superglue Method

Abstract

The research aimed to study the appearance of latent fingerprints on leather by using Superglue method at room temperature as well as comparing the appearance of latent fingerprints on leather, classified by differences in time and types of leathers. This research was an experimental research. The experiment on collecting latent fingerprints by Superglue method was carried out with four types of leather, which consisted of top grain leather, suede, PU leather and patent leather. The experiment was also conducted in eight different times which were immediately after fingerprinting, 3 hours, 6 hours, 12 hours, 1 day, 3 days, 5 days and 7 days. Then, latent fingerprints were verified by counting the number of important points with the Automated Fingerprint Identification System which were used for the analysis. It was noted that quality of latent fingerprint on leather was significantly different at the level of 0.05 (F = 11.586, Sig = 0.000). When considering the quality of latent fingerprint on each leather, it was found that latent fingerprint appearing on top grain leather was the best quality. For time differences in the appearance of latent fingerprints on leather, it was found that it was insignificantly different in the appearance of latent fingerprints on leather.