GENERAL46067

• Permit No: M1988112
• IBM Index Class Name: General Documents
• Doc Date: 7/17/1992
• Doc Name: NEWSPAPER ARTICLE ADVANTAGES PITFALLS IN CHOOSING LABS
• Media Type: D
• Archive: No

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Lnbu:aln:-v analyses presented as evidence at an arbitration,
administrauce hranng ur a trial are likely to br challenged. The
proponent. of sorb evidence matt clear two hurdles: admissibility
and crrdihility. Cirnerally, the party trying to admit the
lahoratnrc data into evidence may be required to establish chat:
• The at7slrticsl procedure used to obtain the data has boon
accepud generally as reliable by at least a substantial minority
of recognized authorities in the sden[ifie field in which the test
bC1Ung6:'
• The person who testifies on the reliability of the analytical
procedure. used w obtain the data and on their level of
astrpl,9nce in the scientific community is a properly qualified
expert; and
• The tkst used to outain the data woe nciminislered with
correct scientific procedures z
The first c-:tcriun a<idresscs the reliability of the analytical
test itself. Even if the U.•`'.. Emironmcata] p:otecGon Agent;
;L'SEP•11 ur another regulatory agency has approved the lest
method, this does not necessarily indicate that rho test method ie
;enerallc accepted 1?y recognized authorities in the analyical
field. Son7e ntethuds adapted for petroleum product nnalyeis,
such as EP:1 method 41N.:, may fall into this category.
'1'hr reliai>ility of cutting edge technologies are particularly
~uscrptiLlr to attack. Ganerslly, all ncw• technologies face n
seasoning },grind before they meet fist rrliabilit}• criterion. For
example, while gss chromatography with a miss spectrometer
detecwr. C;Cr1fS, now is used commonly, the method once was en
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new and unpolished it, reliability woe questioned.
Nhile technological changes are rslatively easy to spot when
reviewing data, much smaller, more subtle orocedure changes,
such as sample handling protocol, can be ten lase n soutte of
vulnerability under the "reliability of method" criterion.
The second criterion addresses the need fur an expert at the
proceedings to validate the anni}tical procedure used. T'.]c ability
to accomplish this depends nn developirg an appropriate
foundation cnnccrting the expert's qualifications to render a
relevant opinion an the propnocy of the anal}•licnl procedure
used.
The third criterion goes w tVte heart of the Irlborawry operation
itself. To show that cuaecl scientific procedutex wore used in
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