ISSN: 0022-1198
CODEN: JFSCA
Published Online: 1 July 1983
Page Count: 16

Optimum Conditions for Examination of Documents Using an Electrostatic Detection Apparatus (ESDA) Device to Visualize Indented Writings
James, EL
Special agent and document analyst, Federal Bureau of Investigation, DC

Noblett, MG
Special agent and document analyst, Federal Bureau of Investigation, DC

(Received 26 October 1982; accepted 31 December 1982)

Abstract

This study indicated that preconditioning a document in a humidity chamber maintained at 40 to 60% provided the most information from indented writings. It further indicated that aerosol application of the toner provided more information than cascade application. This study also indicated that electrostatic detection apparatus (ESDA) examination for indented writing has no deleterious effect on subsequent latent fingerprint development.

Keywords:
questioned documents, electrostatic detection apparatus (ESDA), fingerprints, indented writing

Paper ID: JFS11566J
DOI: 10.1520/JFS11566J
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