Journal Published Online: 01 July 1997
Volume 42, Issue 4

Infrared Luminescence of Indented Writing as Evidence of Document Alteration

CODEN: JFSCAS

Abstract

A case involving the suspected addition of a line to two sales slips of the same transaction was investigated. Using infrared luminescence, indented impressions on one document were found to originate from writing on the second copy, and vice versa. The source of the luminescence most probably originated from the paper which was found to have a coated back of leucodye microcapsules, as such that is found in carbonless copy paper. The context and locations of these indented impressions enabled one to determine the sequence in which the entries were written, and to prove that the questioned entries were added later.

Author Information

Sharf, S
Questioned Documents Laboratory, Division of Identification and Forensic Science, Israel Police Headquarters, Jerusalem, Israel
Gabbay, R
Questioned Documents Laboratory, Division of Identification and Forensic Science, Israel Police Headquarters, Jerusalem, Israel
Brown, S
Questioned Documents Laboratory, Division of Identification and Forensic Science, Israel Police Headquarters, Jerusalem, Israel
Pages: 4
Price: $25.00
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Details
Stock #: JFS14193J
ISSN: 0022-1198
DOI: 10.1520/JFS14193J