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Development of conductive fingermarks for forensic applications.

Niamh E Richards1, Andrew Langley2, Laura J Vera Stimpson3

  • 1School of Law, Policing and Social Sciences, Canterbury Christ Church University, Kent, UK.

Forensic Science, Medicine, and Pathology
|October 24, 2024
PubMed
Summary

This study introduces a novel method using conductive paint and silicone for developing and recovering fingermarks. This innovative technique creates conductive casts for forensic analysis and unlocking modern fingerprint scanners.

Keywords:
ConductivityFingermarksForensic science

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Area of Science:

  • Forensic Science
  • Materials Science
  • Biotechnology

Background:

  • Fingermarks are crucial in criminal justice for identification and exclusion.
  • Modern technology and biosecurity increasingly rely on fingerprint recognition.
  • Existing fingermark development methods do not meet dual forensic and technological needs.

Purpose of the Study:

  • To present a novel method for developing, recovering, and preserving fingermarks.
  • To create a dual-purpose technique serving traditional forensic needs and modern technological applications.
  • To introduce conductive casts for enhanced fingermark analysis and device access.

Main Methods:

  • Utilized conductive paint and silicone for fingermark development.
  • Applied the method to latent, patent, and plastic fingermarks.
  • Produced conductive casts capturing detailed ridge patterns.

Main Results:

  • Successfully developed and recovered fingermarks using the novel method.
  • Generated conductive casts suitable for forensic examination.
  • Demonstrated the casts' functionality in unlocking capacitive and ultrasonic fingerprint scanners.

Conclusions:

  • The conductive paint and silicone method offers a versatile approach to fingermark recovery.
  • This innovative technique bridges the gap between forensic science and modern biometric technology.
  • The developed conductive casts provide a dual utility for identification and device access.