ISSN: 0022-1198
CODEN: JFSCA
Page Count: 5

Crayon Obliteration over Ballpoint Pen Writing
Sierra, AH
Document Examiner, and Forensic Scientist, Puerto Rico Institute of Forensic Sciences, Puerto Rico

Maldonado, HI
Document Examiner, and Forensic Scientist, Puerto Rico Institute of Forensic Sciences, Puerto Rico

(Received 30 January 1992; accepted 14 February 1992)

Abstract

A procedure based on solvent washing with ultrasonic bath was developed for restoration of a document with crayon was obliterations. Several tests were performed in order to find the optimum solvents and experimental conditions. The method developed produced acceptable results.

Keywords:
questioned documents, crayon obliteration, obliterations, document restoration

Paper ID: JFS13359J
DOI: 10.1520/JFS13359J
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