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ASTM E2324-04

Current Revision

Standard Guide for PDD Paired Testing

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1.1 Standard guide for the derivation of quantitative assessments of the credibility of proposed witness testimony through the application of established statistical principles to combinations of PDD examination results, and for the utilization of such assessments in the interests of justice (The Marin Protocol)

1.2 This standard describes circumstances in which proven statistical principles, applied to PDD results, can reliably quantify the trustworthiness or untrustworthiness of witness testimony, and

1.2.1 Delineates requirements necessary to effect the generation and practical use of such results, including:

1.2.1.1 Criteria regarding witnesses to be examined,

1.2.1.2 Criteria for determining facts upon which witnesses are to be examined,

1.2.1.3 Certification of examiners eligible to conduct examinations,

1.2.1.4 Combinations of results which support strong inferences, and

1.2.1.5 Appropriate uses to which strong inferences can be put.

1.3 Courts and others responsible for adjudicating questions of fact may choose whether and when to invoke paired PDD testing.

1.3.1 This guide expresses the rights and obligations of all participants in order to best serve the interests of justice when it is invoked.

1.3.2 Paired PDD testing must not be invoked in any case in any jurisdiction where to do so would violate the laws of that jurisdiction.

1.3.3 Adherence to these guidelines ensures that the conclusions reached will be valid.

1.4 This standard is directed to the proposed testimony of witnesses in criminal, civil, administrative and family court litigation, regarding factual claims, where

1.4.1 It is unlikely that the witnesses could be honestly mistaken, and

1.4.2 The facts in dispute are such that the case may hinge on whom the trier of fact believes; whenever,

1.4.3 Witnesses on opposite sides of a case offer contradictory testimony.

1.4.4 Two or more witnesses testifying for one side offer mutually corroborating testimony.
SDO ASTM: ASTM International
Document Number E2324
Publication Date May 1, 2004
Language en - English
Page Count 4
Revision Level 04
Supercedes
Committee E52.05
Publish Date Document Id Type View
May 1, 2004 E2324-04 Revision
Oct. 1, 2017 E2324-04R17 Reaffirmation
Oct. 1, 2011 E2324-04R11 Reaffirmation