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[Script crossing in scanning electron microscopy]
M Oehmichen1, D von Kortzfleisch, B Hegner
1Institut für Rechtsmedizin der Universität zu Köln, Federal Republic of Germany.
Zeitschrift Fur Rechtsmedizin. Journal of Legal Medicine
|January 1, 1989
Abstract:
A case of mixed script in which ball point-pen ink was contaminated with typewriting prompted a survey of the literature and a systematic SEM study of mixed script with various writing instruments or inks. Mixed scripts produced with the following instruments or inks were investigated: pencil, ink/India ink, ball-pint pen, felt-tip pen, copied script and typewriter. This investigation showed SEM to be the method of choice for visualizing overlying scripts produced by different writing instruments or inks.