Journal Published Online: 01 January 1982
Volume 27, Issue 1

Illusions of Tracing

CODEN: JFSCAS

Abstract

Numerous explainable phenomena occur in handwriting that give the product the illusion of being a tracing. This paper exposes various illusions of tracing by describing specific case studies that include diffusion of ink components viewed under infrared luminescence, “sister” lines, rough writing surfaces, writing machines, and plastic lamination. Also discussed is a common principle that exposes illusions.

Author Information

Vastrick, TW
U.S. Postal Inspection Service, Crime Laboratory, Memphis, TN
Pages: 6
Price: $25.00
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Stock #: JFS11463J
ISSN: 0022-1198
DOI: 10.1520/JFS11463J