Citation

How “cold hit” DNA matches affect the perception of guilt and the interpretation of non-genetic evidence

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Abstract:

Trawling genetic databases to identify suspects is highly controversial, yet very little is known about how trawls effect jurors’ interpretation of evidence and perceptions of guilt. Using a 2(trawl or confirmation) x 2(strong or weak non-genetic evidence) factorial design, this experiment found that mock-jurors are less likely to convict when a DNA match results from a trawl, particularly when the evidence was weak. The Wells Effect explains these results, whereby an initial match creates an expectation for corroborating evidence, the absence of which is treated as evidence of innocence. The findings have implications for the legal admissibility of trawl matches.
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Association:
Name: American Psychology - Law Society / 4th International Congress of Psychology and Law
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http://www.ap-ls.org/


Citation:
URL: http://citation.allacademic.com/meta/p482317_index.html
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MLA Citation:

Scurich, Nicholas. "How “cold hit” DNA matches affect the perception of guilt and the interpretation of non-genetic evidence" Paper presented at the annual meeting of the American Psychology - Law Society / 4th International Congress of Psychology and Law, Hyatt Regency Miami, Miami, FL, Mar 02, 2011 <Not Available>. 2014-11-26 <http://citation.allacademic.com/meta/p482317_index.html>

APA Citation:

Scurich, N. , 2011-03-02 "How “cold hit” DNA matches affect the perception of guilt and the interpretation of non-genetic evidence" Paper presented at the annual meeting of the American Psychology - Law Society / 4th International Congress of Psychology and Law, Hyatt Regency Miami, Miami, FL <Not Available>. 2014-11-26 from http://citation.allacademic.com/meta/p482317_index.html

Publication Type: Poster
Review Method: Peer Reviewed
Abstract: Trawling genetic databases to identify suspects is highly controversial, yet very little is known about how trawls effect jurors’ interpretation of evidence and perceptions of guilt. Using a 2(trawl or confirmation) x 2(strong or weak non-genetic evidence) factorial design, this experiment found that mock-jurors are less likely to convict when a DNA match results from a trawl, particularly when the evidence was weak. The Wells Effect explains these results, whereby an initial match creates an expectation for corroborating evidence, the absence of which is treated as evidence of innocence. The findings have implications for the legal admissibility of trawl matches.


Similar Titles:
Beyond the Walls of the Laboratory: Judge and Jury Interpretations, Perceptions and Understanding of DNA Evidence

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Tunnel Vision in Investigations: The Effects of Evidence Order on Perceptions of Guilt

The Interaction Effect of Instructor Eye Contact and Student Culture on Perception of Instructor Credibility, Affect toward Instructor and Affect toward Class Content


 
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