(Received 12 November 1980; accepted 5 December 1980)
Published Online: July
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A piece from an automobile rubber bumper guard was found at the scene of a hit-and-run accident and was compared to a sample obtained from the front bumper guard of a suspect's vehicle. The samples were examined by the pyrolysis method of Chih-An Hu, which provides both a chromatogram of the volatile components and a pyrogram of the nonvolatile polymeric component.
Chemist, U.S. Army Criminal Investigation Laboratory—Europe, Frankfurt,
Stock #: JFS11398J