FORident Software

  • HemoSpat
  • Research
  • Bookshelf
  • Contact Us
  • Home

Touch DNA: Forensic Collection and Application to Investigations

Author:
Angela L. Williamson
Journal:
Journal of the Association for Crime Scene Reconstruction
Published:
2012
Abstract:

Touch DNA refers to the DNA that is left behind from skin cells when a person touches or comes into contact with an item. However, since Touch DNA (also referred to as wearer or contact DNA) is invisible to the naked eye, and is usually deposited in smaller amounts than the DNA found in bloodstains or other body fluids, it is more difficult to identify areas where skin cells may be present. As such, it can be quite challenging to obtain DNA profiles from these samples. Obtaining successful Touch DNA results depends on recognizing items which may be suitable for Touch DNA analysis, proper collection/storage of these items, and the subsequent use of the optimal sampling technique that will recover the highest number of skin cells.

Citation:
Williamson A. L. Touch DNA: Forensic Collection and Application to Investigations. J. Assoc. Crime Scene Recon., 2012, 18(1), 1-5.
PDF:
Touch DNA: Forensic Collection and Application to Investigations
Keywords:
crime scene investigation, crime scene reconstruction, DNA collection, evidence collection, evidence preservation, touch DNA

Forensics Books

Forensic Biomechanics (Developments in Forensic Science) @amazon.com
Forensic Biomechanics (Developments in Forensic Science)
Jules Kieser, Michael Taylor, Debra Carr

Search Research Abstracts

Research Article Keywords

3D visualization accident reconstruction angle of impact area of origin calculation autopsy BackTrack biomechanics blood detection bloodstain enhancement bloodstain pattern analysis bullet defects bullet deflection bullet hole bullet trajectories case study cast-off patterns clothing crime scene analysis crime scene investigation crime scene reconstruction crime scene sketching DNA collection evidence collection evidence preservation fabrics forensic medicine head injury HemoSpat impact pattern analysis impact spatter leucocrystal violet luminol multilinear events sequencing perspective grid photogrammetry Photoshop post-mortem interval shooting reconstruction software modelling soil spatter stains testimony touch DNA trajectory analysis transfer stains
© 2023 FORident Software, Inc. | Base theme by Think Up Themes Ltd