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NCJRS Abstract

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NCJ Number: 136126 Find in a Library
Title: Utility of DNA Typing in Forensic Work
Journal: Perspective  Dated:(December 20, 1991)  Pages:1735-1739
Author(s): R Chakraborty; K K Kidd
Date Published: 1991
Page Count: 5
Type: Survey
Format: Article
Language: English
Country: United States of America
Annotation: In a critical appraisal of the use of DNA typing in a legal setting, it is necessary to distinguish between exact values and valid estimates. The issue is whether a meaningful estimate can be obtained for the frequency of the DNA pattern when a match does occur.
Abstract: The authors discuss several issues relevant to this debate: genetic systems used in DNA typing, population genetics of VNTR (variable number of tandem repeat) loci, statistical evaluations of the significance of a match, and current computations of the probability of a DNA profile. They conclude that estimates which favor the defendant are acceptable. The existing population data allow valid estimates to be calculated for the larger U.S. racial groups. Existing data are sufficient to allow DNA fingerprinting of VNTR loci to be used in the courts. Despite some discrepancies and problems in DNA typing, excluding DNA evidence from courtroom applications would substantially diminish the prospect of convicting guilty defendants. 2 tables, 1 figure, and 52 references
Main Term(s): DNA fingerprinting
Index Term(s): Forensic medicine; Rules of evidence
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