Journal Published Online: 01 October 1986
Volume 31, Issue 4

Sheet or Container?—Forensic Glass Comparisons with an Emphasis on Source Classification

CODEN: JFSCAS

Abstract

The value of source-type classification for small fragments of glass encountered in trace evidence casework is restressed. The incorporation of classification techniques into the classical refractive index/density comparison scheme is described. The techniques employed are applications of those developed by the British forensic science community over the past 5 years, targeted at differentiating the 2 most common end-use types of soda-lime-silicate glasses encountered in casework—sheet glass and container glass. The results of method verification studies on 30 window glass specimens for tempered/nontempered classification and on 140 window and container glass specimens for sheet/container classification are reported. Although some limitations were revealed with the domestic samples used, the overall success of the approach was established.

Author Information

Ryland, SG
Florida Department of Law Enforcement, Orlando Regional Crime Laboratory, Orlando, FL
Pages: 16
Price: $25.00
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Stock #: JFS11909J
ISSN: 0022-1198
DOI: 10.1520/JFS11909J