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NCJRS Abstract

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NCJ Number: 78456 Find in a Library
Title: Arson Seminar - Evidence Preservation and Laboratory Analysis
Corporate Author: US Dept of Justice
Law Enforcement Assistance Admin
United States of America
Date Published: Unknown
Sponsoring Agency: US Dept of Justice
Washington, DC 20531
Format: Film
Language: English
Country: United States of America
Annotation: In this arson seminar, Joseph McGinnes of the FBI laboratory tells how to send evidence of arson to the FBI laboratory and discusses the relationship between laboratory investigation and case solution.
Abstract: The speaker emphasizes guidelines for evidence handling such as placing a letter on the outside of a package and putting flammable liquids such as gasoline or turpentine into tightly sealed, clean containers. The use of a gas chromatograph in laboratory work is shown by a series of charts illustrating the ability of the chromatograph to break down a complex compound or mixture into constituent parts. In addition, the speaker discusses flashpoint, the effectiveness of sniffers, factors affecting evidence collection, problems in distinguishing between different brands of gasoline, and the importance of speedy investigation.
Index Term(s): Arson investigations; Audiovisual aids; Chromatography; Evidence preservation
Note: *This document is currently unavailable from NCJRS. 2 videocassettes, parts I and II, total running time 63 minutes, color.
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