Chain of custody; recommendations for acceptance and analysis of evidentiary geochemical samples

Christine M. Murphy; Paul H. Briggs; Betty M. Adrian; Steve A. Wilson; Phil L. Hageman; Pete M. Theodorakos

doi:10.3133/cir1138

Chain of custody; recommendations for acceptance and analysis of evidentiary geochemical samples

Circular 1138

By: Christine M. Murphy, Paul H. Briggs, Betty M. Adrian, Steve A. Wilson, Phil L. Hageman, and Pete M. Theodorakos

https://doi.org/10.3133/cir1138

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Abstract

Personnel from the Analytical Chemistry Services Group (ACSG), Mineral Resource Survey Program, formed a team to determine the policies for acceptance and analysis of geochemical samples. This team contacted law enforcement agencies that handle litigious samples, laboratories that work with samples of special nature, and the Solicitor General, Department of the Interior. Using the knowledge from these agencies as well as the expertise of ACSG personnel, sample control routine procedures, sample control evidentiary procedures, personnel policy governing chain-of-custody samples, and the general polices governing physical security of chain-of custody samples have been enacted.

Additional publication details
Publication type	Report
Publication Subtype	USGS Numbered Series
Title	Chain of custody; recommendations for acceptance and analysis of evidentiary geochemical samples
Series title	Circular
Series number	1138
DOI	10.3133/cir1138
Edition	-
Year Published	1997
Language	ENGLISH
Publisher	U.S. G.P.O. ; U.S. Geological Survey, Information Services,
Description	iv, 26 p. ;28 cm.
Google Analytic Metrics	Metrics page