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NCJRS Abstract

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NCJ Number: 221660 Find in a Library
Title: Macroscopic Characteristics of Screwdriver Trauma
Journal: Journal of Forensic Sciences  Volume:52  Issue:6  Dated:November 2007  Pages:1243-1251
Author(s): Alexandra M. Croft M.Sc.; Roxana Ferllini M.A.
Date Published: November 2007
Page Count: 9
Type: Report (Study/Research)
Format: Article
Language: English
Country: United States of America
Annotation: The primary objective of this study was to determine the type of macroscopic trauma created by a flat-tipped screwdriver and a cross-tipped screwdriver, and a secondary objective was to determine whether the trauma inflicted by the two types of screwdrivers could be macroscopically differentiated.
Abstract: The findings showed two main categories of macroscopic skeletal trauma created by the two types of screwdrivers. Both fractures and puncture wounds occurred in different forms and provided information for identifying and differentiating the type of screwdriver used. This can be achieved in two complementary ways; first, by the visual identification of puncture wounds that are directly diagnostic of the screwdriver used during the attack. Second, it is possible to differentiate between flat-tipped and cross-tipped trauma by studying the frequency patterns of the exhibited trauma. These findings, however, are preliminary. The various forms of trauma observed in this study require more analysis than was possible with the available sample size. The authors are currently involved in further research on this topic. Each of 3 tests consisted of 12 samples of fleshed pig ribs. Six were stabbed with a flat-tipped screwdriver, and the remaining six with a cross-tipped screwdriver (Phillips). Each sample received 15 stab wounds inflicted by male volunteers. The stabbings were conducted at perpendicular and oblique angles, with fabric variables being used. 6 tables, 10 figures, and 29 references
Main Term(s): Police policies and procedures
Index Term(s): Foreign criminal justice research; Forensic sciences; Investigative techniques; United Kingdom (UK); Weapons
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