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Forensic touch DNA recovery from metal surfaces : A review
بازیابی DNA لمسی قانونی از سطوح فلزی : یک بررسی-2020 Trace evidence such as touch (also known as contact) DNA has probative value as a vital forensic investigative
tool that can lead to the identification and apprehension of a criminal. While the volume of touch DNA evidence
items submitted to forensic laboratories has significantly increased, recovery and amplification of DNA from
these items, especially from metal surfaces, remains challenging. Currently little is understood with regards to
the underlying mechanisms of metal-DNA interactions in the context of forensic science and how this may
impact on DNA recovery. An increased understanding of these mechanisms would allow optimisation of methods
to improve outcomes when sampling these materials. This paper reviews the basis of DNA binding to metal
substrates, the merits and limitations of current methods and future perspectives of improving recovery and
amplification of touch DNA from metal surfaces of forensic interest. Keywords: Forensic Science | Metals | touch DNA and/or contact DNA | direct PCR | Swabbing | Tape lifting | Bardole M-vac |
مقاله انگلیسی |