In everyday life, when humans bring hands to catch things, it's fingerprints are passive. Fingerprints, which are caused by dust, sweat, oils, dust, debris, including several on hand so when the hand to catch certain types of containers such as glass will appear straight fingerprints that Roy has two types of fingerprints that can be seen with the naked eye and fingerprints that are not visible to the naked eye. We call the fingerprints that can not be seen with the eye that latent fingerprints. If we know the latent fingerprints (Latent fingerprint). On the glass, it will say who catch glass.
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