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American forensic DNA practitioners' opinion on activity level evaluative reporting.

Yoon Jung Yang1, Mechthild Prinz2, Heather McKiernan3

  • 1Department of Chemistry & Physics, Arcadia University, Glenside, Pennsylvania, USA.

Journal of Forensic Sciences
|May 15, 2022
PubMed
Summary
This summary is machine-generated.

Forensic biologists in the U.S. show moderate support for activity level reporting (ALR) in DNA analysis. Implementation requires addressing concerns like education, standardization, and further research on DNA transfer scenarios.

Keywords:
American forensic DNA practitionersDNA transferactivity level propositionsevaluative reportingforensic sciencesurvey

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Area of Science:

  • Forensic Science
  • Molecular Biology
  • Criminalistics

Background:

  • Advancements in DNA profiling enable analysis of minute DNA quantities.
  • Disputes in criminal courts increasingly focus on DNA deposition rather than identification.
  • European forensic labs utilize activity level reporting (ALR), unlike current U.S. practice.

Purpose of the Study:

  • To survey U.S. forensic biologists' opinions on activity level reporting (ALR).
  • To identify key concerns regarding ALR implementation in the United States.

Main Methods:

  • A seventeen-question survey was distributed to U.S. forensic practitioners.
  • Respondents included members of the American Society of Crime Laboratory Directors and the International Society for Forensic Genetics.
  • Fifty-four responses were collected and analyzed.

Main Results:

  • The majority of U.S. forensic biologists expressed moderate support for ALR.
  • Six primary concerns were identified: variable effects, education needs, lack of realistic activity studies, court admissibility challenges, standardization requirements, and a necessary perspective shift.

Conclusions:

  • U.S. forensic DNA practitioners are willing to adopt ALR once identified concerns are resolved.
  • Further research with larger groups and diverse disciplines is recommended.