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Optical Methods in the Examination of Questioned Documents

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Forensic Science Progress

Part of the book series: Forensic Science Progress ((FORENSIC,volume 2))

Abstract

First, the word “document” is defined. “Optical methods” are described in a survey of classical as well as the most recent methods and techniques in the field. The paper does not include any new and original methods or techniques, but describes recent studies carried out in the field of questioned-document examination. The basic concepts of questioned-document examination, the examination of dimensions and shapes, of structures, and of colors and tones are considered along with the various techniques of modern photography and of examining in reflected light, in grazing light, and in transmitted light as well as the techniques of ultraviolet fluorescence, ultraviolet reflexion, infrared absorption, and infrared luminescence and the use of various modern apparatus such as the comparison macro-micro-projector, scanning electron microscope, and microspectrophotometer.

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Author information

Authors and Affiliations

  1. Institut de Police Scientifique et de Criminologie, Law Faculty, University of Lausanne, Switzerland

    Jaques Mathyer

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  1. Jaques Mathyer
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Editor information

Editors and Affiliations

  1. Forensic Science Centre, 21 Divett Place, 5000, Adelaide, S.A., Australia

    A. Maehly

  2. Metropolitan Police Forensic Science Laboratory, 109 Lambeth Road, SE1 7LP, London, England

    R. L. Williams (Director) (Director)

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© 1988 Springer-Verlag Berlin Heidelberg

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Mathyer, J. (1988). Optical Methods in the Examination of Questioned Documents. In: Maehly, A., Williams, R.L. (eds) Forensic Science Progress. Forensic Science Progress, vol 2. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-69403-5_2

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  • DOI: https://doi.org/10.1007/978-3-642-69403-5_2

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-69405-9

  • Online ISBN: 978-3-642-69403-5

  • eBook Packages: Springer Book Archive

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