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Application of DNA Fingerprinting using the D1S80 Locus in Lab Classes
08:35

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Published on: July 17, 2021

Expertise in fingerprint identification.

Matthew B Thompson1, Jason M Tangen, Duncan J McCarthy

  • 1School of Psychology, The University of Queensland, St Lucia, QLD, 4072, Australia; Queensland Research Laboratory, National Information and Communications Technology Australia, St Lucia, QLD, 4072, Australia.

Journal of Forensic Sciences
|June 22, 2013
PubMed
Summary
This summary is machine-generated.

Qualified fingerprint experts demonstrate high accuracy in pattern discrimination, but are not infallible. Scientific studies are crucial for understanding forensic expertise and informing public policy.

Keywords:
decision makingexpertisefingerprintsforensic sciencejudgmentlawpolicytestimony

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Chromatographic Fingerprinting by Template Matching for Data Collected by Comprehensive Two-Dimensional Gas Chromatography
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Published on: September 2, 2020

Area of Science:

  • Forensic Science
  • Cognitive Psychology
  • Expertise Research

Background:

  • Fingerprint evidence has been used in courts for over 100 years.
  • Scientific investigation into human pattern discrimination, particularly for fingerprints, has been limited.
  • Previous research has not fully explored the accuracy and error rates of fingerprint examiners.

Purpose of the Study:

  • To provide a rationale for the design of a latent print matching experiment.
  • To investigate the accuracy and error rates of qualified fingerprint experts compared to novices.
  • To discuss the implications of findings for forensic expertise, expert testimony, and public policy.

Main Methods:

  • A latent print matching experiment was conducted with qualified, court-practicing fingerprint experts and novices.
  • The experiment balanced fidelity, generalizability, and control to address key research questions.
  • A signal detection paradigm with known ground truth was employed to assess proficiency and competence.

Main Results:

  • Qualified fingerprint experts are exceedingly accurate in latent print matching compared to novices.
  • While highly accurate, fingerprint experts do make errors, indicating they are not infallible.
  • The study highlights the importance of experimental design in accurately assessing forensic examiner performance.

Conclusions:

  • The study provides a framework for scientifically evaluating forensic expertise.
  • Inferring a specific error rate (e.g., 0.68%) from this experiment is scientifically unjustified.
  • Findings have significant ramifications for the psychological study of forensic expertise, expert testimony, and public policy.