Invisible Ink: A Refresher for Document Examiners
Abstract
With recent publicity concerning imprisoned gang members using invisible ink to communicate instructions for murdering rival gang members, it is anticipated that other inmates will “copy-cat” this “secret communication” technique. This paper reviews the history of invisible ink, discusses materials most commonly used in correctional facilities to produce invisible inks, and explains the various methods for identifying and developing the writing produced by these substances.
DOI: https://doi.org/10.69525/jasqde.139 | Journal eISSN: 1524-7287
Language: English
Page range: 25 - 28
Published on: Jun 1, 2007
Published by: American Society of Questioned Document Examiners
In partnership with: Paradigm Publishing Services
© 2007 James L. Streeter, Greg P. Kettering, Kenneth B. Zercie, published by American Society of Questioned Document Examiners
This work is licensed under the Creative Commons Attribution 4.0 License.