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Positive control tests for fingermark development reagents.

Roy Janssen-Bouwmeester1, Christiaan Bremmer1, Linda Koomen1

  • 1Netherlands Forensic Institute, Digital and Biometric Traces (Team Forensic Biometric Traces), Laan van Ypenburg 6, 2497 GB, The Hague, Netherlands.

Forensic Science International
|April 1, 2020
PubMed
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Corrigendum to "Proteomics in forensics: from source attribution to reconstruction of events". [Sci. Justice 65(6) (2025) 101320].

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Proteomics in forensics: from source attribution to reconstruction of events.

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Potential of Proteomics in Forensic Phenotyping: A Focus on Biological Sex Estimation.

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An Integrated proteomic workflow for body fluid classification and single amino acid variant identification: Advancing towards body fluid source attribution.

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The influence of storage conditions on fingermarks developed with 1,2-indanedione-ZnCl.

Forensic science international·2023
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Profiling and imaging of forensic evidence - A pan-European forensic round robin study part 1: Document forgery.

Science & justice : journal of the Forensic Science Society·2022

This study developed reliable positive control tests for fingermark visualization techniques, establishing lower detection limits for ninhydrin and 1,2-indanedione-ZnCl using amino acid spot tests and a Dimatix Materials Printer.

Area of Science:

  • Forensic Science
  • Analytical Chemistry

Background:

  • No reliable positive control tests were available for fingermark visualization techniques.
  • Established methods lacked consistency and representativeness for challenging scenarios.

Purpose of the Study:

  • Determine the lower limits of detection (LOD) for ninhydrin and 1,2-indanedione-ZnCl.
  • Develop and validate reliable positive control tests for these fingermark visualization techniques.

Main Methods:

  • Amino acid spot tests were used to establish initial lower LODs.
  • A Dimatix Materials Printer (DMP) was employed to print simulated fingermarks for LOD determination.
  • Concept positive control tests were developed based on established LODs and refined over a two-month testing period.
Keywords:
FingermarkFingerprintIndanedioneNinhydrinPositive controlSimulated fingermark

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Main Results:

  • The lower limits of detection for ninhydrin and 1,2-indanedione-ZnCl were successfully determined.
  • Novel positive control tests were developed and validated for the specified fingermark visualization techniques.

Conclusions:

  • The developed positive control tests provide a reliable and consistent method for evaluating fingermark visualization techniques.
  • This research addresses a critical need in forensic science for standardized positive controls in fingermark analysis.