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Transfer: DNA

Meakin, GE; (2016) Transfer: DNA. In: Jamieson, A and Moenssens, A, (eds.) Wiley Encyclopedia of Forensic Science. Wiley

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Touch DNA, better referred to as trace DNA, can be transferred to a surface in a multitude of ways, both directly and indirectly. Although promising methods are on the horizon, it is currently not possible to reliably identify the biological source of trace DNA, be it from skin cells, other tissues or body fluids. This makes it particularly difficult for forensic experts to assess how trace DNA might have been transferred to the surface of interest. The detection of such transferred trace DNA is dependent on a plethora of factors, including those affecting its initial deposition, persistence, availability for onward transfer, and analytical recovery and availability for DNA profiling. Routine DNA profiling is now being conducted by extremely sensitive techniques making the recovery of trace DNA from a crime scene far more likely. As such, forensic experts must consider issues of DNA transfer, and any potential risks of contamination, when evaluating findings of trace DNA in casework.

Type: Book chapter
Title: Transfer: DNA
DOI: 10.1002/9780470061589.fsa526.pub2
Publisher version: https://doi.org/10.1002/9780470061589.fsa526.pub2
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
Keywords: Forensic DNA profiling, Trace DNA, Touch DNA, DNA transfer, DNA persistence, Secondary transfer, Indirect transfer
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Security and Crime Science
URI: https://discovery.ucl.ac.uk/id/eprint/1477367
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