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NCJ Number: 51792 Find in a Library
Title: CASE REPORT - TRACE ELEMENT ANALYSIS OF STEEL SECTIONS ON EITHER SIDE OF AN OXYGEN CUT IN A VEHICLE SUSPECTED OF BEING STOLEN
Journal: JOURNAL OF FORENSIC SCIENCES  Volume:23  Issue:4  Dated:(OCTOBER 1978)  Pages:707-711
Author(s): G L POWELL; R R ROBINSON
Corporate Author: American Acad of Forensic Sciences
United States of America
Date Published: 1978
Page Count: 5
Sponsoring Agency: Amdel Materials Division
Frewville, South Aust 5063, Australia
American Acad of Forensic Sciences
Colorado Springs, CO 80901-0669
Sale Source: Amdel Materials Division
Flemington Street
Frewville, South Aust 5063,
Australia
Language: English
Country: United States of America
Annotation: WHEN DRAG-LINES FROM AN OXYGEN CUT WERE NOT SUFFICIENTLY DISTINCTIVE TO ENABLE POLICE INVESTIGATORS TO CONCLUDE THAT TWO PARTS OF A VEHICLE HAD A COMMON ORIGIN, TRACE ELEMENT ANALYSIS PROVIDED THE NECESSARY EVIDENCE.
Abstract: THIS CASE REPORT FROM SOUTH AUSTRALIA CONCERNS A VEHICLE SUSPECTED OF BEING STOLEN. A BURNT PORTION OF THE FRONT END, DEVOID OF PAINT AND WITH THE MICROSTRUCTURE ALTERED BY THE HEAT OF THE FIRE, WAS FOUND IN A PUBLIC DUMP. INFORMATION LED POLICE TO A FRONT SUBFRAME FROM A SIMILAR VEHICLE IN A SUBURBAN BACKYARD. THE TWO PARTS CONSISTED OF SEVEN INDIVIDUAL STEEL SECTION; WHEN PLACED TOGETHER AT THE OXYGEN-CUT SURFACES A GOOD PHYSICAL MATCH WAS OBTAINED. HOWEVER, THE STEEL SECTIONS WERE THIN AND THE PATTERN OF DRAG LINES ON THE OXYGEN-CUT SURFACES WERE NOT SUFFICIENTLY DISTINCTIVE TO PROVE COMMON ORIGIN. EMISSION SPECTROGRAPHY SHOWED THAT EACH OF THE SEVEN SUBSECTIONS WAS MADE FROM A DIFFERENT TYPE OF STEEL, CONTAINING DIFFERENT TRACE ELEMENTS. GOOD SPECTROGRAPHIC MATCHES WERE OBTAINED FOR SIX OF THE SECTIONS, AND THE DEFENDANTS CHANGED THEIR PLEA TO GUILTY. PHOTOGRAPHS ILLUSTRATE THE ARTICLE. A TABLE PRESENTS RESULTS OF THE SPECTROGRAPHIC ANALYSIS. REFERENCES ARE INCLUDED. (GLR)
Index Term(s): Australia; Crime laboratories; Evidence identification; Metal identification; Motor Vehicle Theft; Spectroscopy; Trace evidence
To cite this abstract, use the following link:
http://www.ncjrs.gov/App/publications/abstract.aspx?ID=51792

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