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Extending the discussion on inconsistency in forensic decisions and results.
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- Author(s): Buckleton J;Buckleton J;Buckleton J; Bright JA; Bright JA; Taylor D; Taylor D; Taylor D; Curran J; Curran J; Kalafut T; Kalafut T
- Source:
Journal of forensic sciences [J Forensic Sci] 2024 Jul; Vol. 69 (4), pp. 1125-1137. Date of Electronic Publication: 2024 Jun 09.- Publication Type:
Journal Article- Language:
English - Source:
- Additional Information
- Source: Publisher: Blackwell Pub Country of Publication: United States NLM ID: 0375370 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1556-4029 (Electronic) Linking ISSN: 00221198 NLM ISO Abbreviation: J Forensic Sci Subsets: MEDLINE
- Publication Information: Publication: 2006- : Malden, MA : Blackwell Pub.
Original Publication: [Chicago, Ill.] : Callaghan and Co., 1956- - Subject Terms:
- Abstract: The subject of inter- and intra-laboratory inconsistency was recently raised in a commentary by Itiel Dror. We re-visit an inter-laboratory trial, with which some of the authors of this current discussion were associated, to diagnose the causes of any differences in the likelihood ratios (LRs) assigned using probabilistic genotyping software. Some of the variation was due to different decisions that would be made on a case-by-case basis, some due to laboratory policy and would hence differ between laboratories, and the final and smallest part was the run-to-run difference caused by the Monte Carlo aspect of the software used. However, the net variation in LRs was considerable. We believe that most laboratories will self-diagnose the cause of their difference from the majority answer and in some, but not all instances will take corrective action. An inter-laboratory exercise consisting of raw data files for relatively straightforward mixtures, such as two mixtures of three or four persons, would allow laboratories to calibrate their procedures and findings.
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- Contributed Indexing: Keywords: forensic DNA analysis; inter‐laboratory consistency; quality assurance
- Publication Date: Date Created: 20240610 Date Completed: 20240626 Latest Revision: 20240626
- Publication Date: 20240627
- Accession Number: 10.1111/1556-4029.15558
- Accession Number: 38853374
- Source:
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