This study proposes the classification of the toolmark under the heads of zipper teeth as a subclass characteristic as outlined by the Association of Firearm and Toolmark Examiners (AFTE). Two separate cases in which zipper teeth were found at crime scenes prompted this study. Brass zipper teeth manufactured by YKK were taken from 20 pairs of jeans and studied using a Reichert comparison microscope at 4X power. Photographs were taken and over 750 comparisons made. It was found that the toolmarks on each side on the 20 zippers were unique and independent of all other sides. The observations made in this study indicate that classifying zipper teeth toolmarks as a subclass characteristic is valid.
| Identifer | oai:union.ndltd.org:unt.edu/info:ark/67531/metadc2248 |
| Date | 12 1900 |
| Creators | Jacobsen, Dawn |
| Contributors | Gill-King, Harrell, Lott, James R., O'Donovan, Gerard A. |
| Publisher | University of North Texas |
| Source Sets | University of North Texas |
| Language | English |
| Detected Language | English |
| Type | Thesis or Dissertation |
| Format | Text |
| Rights | Public, Copyright, Jacobsen, Dawn, Copyright is held by the author, unless otherwise noted. All rights reserved. |
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