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Forensic identification of relatives of individuals included in a database of DNA profiles

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  • David Cavallini
  • Fabio Corradi

Abstract

In this paper we evaluate the characteristics observed both on a crime sample and on individuals included in a database to assess the probability of alternative hypotheses concerning identification. The problem is first addressed by considering a generic characteristic and we demonstrate the problem via a computationally efficient Bayesian network. Then we turn our attention to a heritable DNA trait to show how to evaluate the hypotheses that some individuals, genetically related to the members of the database, are the donors of the crime sample. Then the network is extended to cope with many loci. Applications of the method are provided as well as details of computational requirements. Copyright 2006, Oxford University Press.

Suggested Citation

  • David Cavallini & Fabio Corradi, 2006. "Forensic identification of relatives of individuals included in a database of DNA profiles," Biometrika, Biometrika Trust, vol. 93(3), pages 525-536, September.
    • Handle: RePEc:oup:biomet:v:93:y:2006:i:3:p:525-536
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    File URL: http://hdl.handle.net/10.1093/biomet/93.3.525
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    Cited by:

    1. Yuk-Ka Chung & Yue-Qing Hu & Wing K. Fung, 2010. "Evaluation of DNA Mixtures from Database Search," Biometrics, The International Biometric Society, vol. 66(1), pages 233-238, March.
    2. Chung, Yuk-Ka & Fung, Wing K. & Hu, Yue-Qing, 2010. "Familial database search on two-person mixture," Computational Statistics & Data Analysis, Elsevier, vol. 54(8), pages 2046-2051, August.

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