Burg Abby, Kahn Roger, Welch Katherine
Harris County Institute of Forensic Sciences, Houston, TX, USA.
J Forensic Nurs. 2011 Sep;7(3):145-52. doi: 10.1111/j.1939-3938.2011.01111.x.
The availability of DNA testing has dramatically changed the way that crimes are investigated. DNA results can link offenders to their crimes, exonerate wrongfully accused individuals, identify mass fatality victims and more. In the case of sexual assault, DNA evidence alone cannot prove that a sexual assault has occurred. DNA analysis can only reveal whether a person's DNA is, or is not, present. In this paper, the authors provide readers with an overview of the advantages and limitations of DNA analysis, the importance of proper evidence collection, the technologies available, and the amount of sample needed for testing. Through proper evidence collection and quality laboratory services, the full value of DNA will be realized.
DNA检测的出现极大地改变了犯罪调查的方式。DNA检测结果能够将罪犯与其罪行联系起来，为被错误指控的人洗脱罪名，识别大规模死亡事件中的受害者等等。在性侵犯案件中，仅凭DNA证据无法证明发生了性侵犯。DNA分析只能揭示一个人的DNA是否存在。在本文中，作者向读者概述了DNA分析的优点和局限性、正确收集证据的重要性、可用的技术以及检测所需的样本量。通过正确收集证据和优质的实验室服务，DNA的全部价值将得以实现。
