Trace DNA evidence dynamics: An investigation into the deposition and persistence of directly- and indirectly-transferred DNA on regularly-used knives

Highlights • DNA recovery from similar regularly-handled single user knives varies among users. • DNA from a user’s romantic partner can be deposited indirectly via the user’s hands. • Non-depositor DNA on single user knives is minor profile, even after handshaking. • Persistence of directly- and in...

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Veröffentlicht in:	Forensic science international : genetics 2017-07, Vol.29, p.38-47
Hauptverfasser:	Meakin, Georgina E, Butcher, Emma V, van Oorschot, Roland A.H, Morgan, Ruth M
Format:	Artikel
Sprache:	eng
Schlagworte:	Alleles DNA - analysis DNA Fingerprinting Female Forensic DNA analysis Forensic Genetics Humans Male Microsatellite Repeats Pathology Persistence Polymerase Chain Reaction Regular use Touch Trace DNA Transfer Weapons
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Beschreibung
Zusammenfassung:	Highlights • DNA recovery from similar regularly-handled single user knives varies among users. • DNA from a user’s romantic partner can be deposited indirectly via the user’s hands. • Non-depositor DNA on single user knives is minor profile, even after handshaking. • Persistence of directly- and indirectly-deposited DNA declines over time.
ISSN:	1872-4973 1878-0326
DOI:	10.1016/j.fsigen.2017.03.016