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NCJRS Abstract

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NCJ Number: 150468 Find in a Library
Title: Lifetime of a Latent Print on Glazed Ceramic Tile
Journal: Journal of Forensic Identification  Volume:44  Issue:4  Dated:(July- August 1994)  Pages:379-386
Author(s): W C Sampson; G C Moffett
Date Published: 1994
Page Count: 8
Type: Survey
Format: Article
Language: English
Country: United States of America
Annotation: As a consequence of a murder trial, in which the suspect was charged largely due to a latent palm print found on a ceramic floor tile, this investigator studied how long latent prints would remain on any smooth, nonporous surface, particularly on a tile floor.
Abstract: The suspect, a handyman, claimed he had not been in the house for 6 months: According to the victim's friends, she mopped the floor frequently. Eight tiles were cleaned and numbered, and a latent palm print was placed on each tile. At random intervals over a period of one year, a tile was selected and examined with reflective lighting, with any observations of latent print residue recorded. One side of the tile was then wiped using tap water, allowed to air dry, and processed using a fiberglass fingerprint brush and black powder. Findings were consistent throughout the course of the study. Latent print evidence remained constant and viable for one year; in fact, the longer a print remained on the tile under controlled temperature and humidity conditions, the more durable it appeared to become.
Main Term(s): Science and Technology
Index Term(s): Criminology; Fingerprint classification; Latent fingerprints; Police equipment
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