Volume 27, Issue 2 (April 1982)

    Linking a Bloodstain to a Missing Person by Genetic Inheritance

    (Received 18 May 1981; accepted 28 August 1981)

    Published Online: April

    CODEN: JFSOAD

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    Abstract

    The use of the principles of genetic inheritance to link a bloodstain to a missing victim is discussed. Genetic marker typing can determine whether the parents of the missing victim are possible parents of the bloodstain source. Given a parental inclusion, it is possible to calculate the probability that a randomly selected couple would possess the necessary genetic combinations to be the parents of the person who bled. The applications of this concept using several genetic marker systems are examined. General formulas have been developed for the probability calculation using phenotype distribution frequencies and gene frequencies. This approach was applied to a homicide case in which it was shown that the victim's parents were among only 0.8% of couples from the general population who would be able to bequeath the genetic marker types found in the bloodstain. This evidence was helpful in producing a conviction of first degree murder.


    Author Information:

    Kuo, MC
    Forensic Science Services, Orange County Sheriff-Coroner, Santa Ana, CA


    Stock #: JFS11501J

    ISSN: 0022-1198

    DOI: 10.1520/JFS11501J

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    Author
    Title Linking a Bloodstain to a Missing Person by Genetic Inheritance
    Symposium , 0000-00-00
    Committee E30