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Multiform Korean handwriting authentication by forensic document examiners.

Tae-Yi Kang1, Joong Lee1

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Summary
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Forensic document examiners

Keywords:
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Area of Science:

  • Forensic Science
  • Handwriting Analysis

Background:

  • Evaluating the reliability of forensic document examination is crucial.
  • Multiform Korean handwriting presents unique challenges in forensic analysis.

Purpose of the Study:

  • To assess the performance of forensic document examiners in blind trials.
  • To investigate the impact of collaborative examination on decision accuracy.

Main Methods:

  • Four forensic document examiners conducted blind trials on Korean handwriting.
  • Examinations were performed individually, in pairs, and in a group setting.
  • Analysis focused on misleading and inconclusive decisions across different handwriting types.

Main Results:

  • Collaborative examination reduced misleading decisions but increased inconclusive ones.
  • Disguised handwriting yielded the highest percentage of misleading conclusions.
  • No significant difference in misleading results for long, short, or signature samples.

Conclusions:

  • Active opinion exchange among experts improves accuracy in handwriting analysis.
  • Artificially modified handwriting requires special attention in forensic examinations.
  • Focusing on handwriting modification is more critical than letter count.