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Tim Kalafut Simone Pugh Peter Gill Sarah Abbas Marie Semaan Issam Mansour James Curran Jo-Anne Bright Tacha Hicks Richard Wivell John Buckleton 《Journal of forensic sciences》2022,67(1):128-135
Semaan et al. (J Forensic Res, 2020, 11, 453) discuss a mock case “where eight different individuals [P1 through P8] could not be excluded in a mixed DNA analysis. Even though … expert DNA mixture analysis software was used.” Two of these are the true donors. The LRs reported are incorrect due to the incorrect entry of propositions into LRmix Studio. This forced the software to account for most of the alleles as drop-in, resulting in LRs 60–70 orders of magnitude larger than expected. P1, P2, P4, P5, and P8 can be manually excluded using peak heights. This has relevance when using LRmix which does not use peak heights. We extend the work using the same two reference genotypes who were the true contributors as Semaan et al. (J Forensic Res, 2020, 11, 453). We simulate three two-donor mixtures with peak heights using these two genotypes and analyze using STRmix?. For the simulated 1:1 mixture, one of the non-donors’ LRs supported him being a contributor when no conditioning was used. When considered in combination with any other potential donors (i.e., with conditioning), this non-donor was correctly eliminated. For the 3:1 mixture, all results correctly supported that the non-donors were not contributors. The low-template 4:1 mixture LRs with no conditioning showed support for all eight profiles as donors. However, the results from pair-wise conditioning showed that only the two ground truth donors had LRs supporting that they were contributors to the mixture. We recommend the use of peak heights and conditioning profiles, as this allows better sensitivity and specificity even when the persons share many alleles. 相似文献
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Public Choice - With the number of people fleeing Syria since 2011 exceeding 5 million, and unclear prospects regarding the country’s future, Syrians currently residing outside their homeland... 相似文献
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The effect of evidence type,identification accuracy,line‐up presentation,and line‐up administration on observers' perceptions of eyewitnesses 下载免费PDF全文
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Professor R. C. L. Lindsay Jamal K. Mansour Jennifer L. Beaudry Amy‐May Leach Michelle I. Bertrand 《Legal and Criminological Psychology》2009,14(1):13-24
Sequential lineups were offered as an alternative to the traditional simultaneous lineup. Sequential lineups reduce incorrect lineup selections; however, the accompanying loss of correct identifications has resulted in controversy regarding adoption of the technique. We discuss the procedure and research relevant to (1) the pattern of results found using sequential versus simultaneous lineups; (2) reasons (theory) for differences in witness responses; (3) two methodological issues; and (4) implications for policy decisions regarding the adoption of sequential lineups. 相似文献
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A survey of more than 203 middle and upper–middle managers that assessed their superiors ( N =51) in the Canadian public sector showed that charismatic leadership in such a setting comprises four dimensions: (1) energy and determination; (2) vision; (3) challenge and encouragement; and (4) risk taking. However, such leadership is only modestly related to motivational consequences and is not significantly related to unit performance. We discuss our findings in terms of their theoretical implications for leadership research in general and for the public sector in particular. 相似文献