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NCJRS Abstract

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NCJ Number: NCJ 242077     Find in a Library
Title: Detection and Processing of Pilot Pen Thermo-Sensitive Ink When Rendered Visible or Colorless
Author(s): John Brunetti
  Journal: Journal of Forensic Identification  Volume:62  Issue:6  Dated:November/December 2012  Pages:551 to 569
Date Published: 12/2012
Page Count: 19
  Annotation: This article examines the effects of latent print processing and DNA swabbing on Pilot's thermo-sensitive gel ink.
Abstract: Pilot Pen Corporation recently released the friction line of erasable gel pens. When the writer wishes to erase a mark, the friction caused by the rubbing of the eraser end of the pen generates heat at or above 140 degrees F. This chemically alters the composition of the ink, making it colorless to the naked eye. The colorless writing can be restored by subjecting it to temperatures of 14 degrees F or cooler. This article examines the effects of latent print processing and DNA swabbing on Pilot's thermo-sensitive gel ink, the utilization of liquid nitrogen to restore the ink's color, and suggested screening methods for detecting intentionally concealed writing. (Published Abstract)
Main Term(s): Criminology
Index Term(s): Document analysis ; Evidence identification and analysis ; Handwriting analysis ; Latent fingerprints ; Ink analyses ; DNA fingerprinting
Publisher URL: http://www.theiai.org 
Type: Report (Study/Research)
Country: United States of America
Language: English
   
  To cite this abstract, use the following link:
https://www.ncjrs.gov/App/Publications/abstract.aspx?ID=264239

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