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The observation of banding in glass fragments and its forensic significance

Authors
Journal
Journal of the Forensic Science Society
0015-7368
Publisher
Elsevier
Publication Date
Volume
29
Issue
1
Identifiers
DOI: 10.1016/s0015-7368(89)73208-4
Keywords
  • Glass Examination
  • Refractive Index
  • Banding
Disciplines
  • Criminology

Abstract

The observation of dark and light bands in microscopic glass fragments has been investigated with respect to its usefulness in forensic examinations. Banding was seen in all the types of glass examined and it was found that the variation in the pattern of the bands could be used to demonstrate that a recovered fragment had originated from a given broken window. The origin and nature of the bands remain unclear, but they appear to be related to the manufacturing process with the bands probably representing regions of different composition and refractive index.

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