Forensic applications of chemical imaging: latent fingerprint detection using visible absorption and luminescence

J Forensic Sci. 2003 Sep;48(5):1047-53.

Abstract

Chemical imaging technology is a rapid examination technique that combines molecular spectroscopy and digital imaging, providing information on morphology, composition, structure, and concentration of a material. Among many other applications, chemical imaging offers an array of novel analytical testing methods, which limits sample preparation and provides high-quality imaging data essential in the detection of latent fingerprints. Luminescence chemical imaging and visible absorbance chemical imaging have been successfully applied to ninhydrin, DFO, cyanoacrylate, and luminescent dye-treated latent fingerprints, demonstrating the potential of this technology to aid forensic investigations. In addition, visible absorption chemical imaging has been applied successfully to visualize untreated latent fingerprints.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aza Compounds / pharmacology
  • Cyanoacrylates / pharmacology
  • Dermatoglyphics*
  • Forensic Medicine / methods*
  • Humans
  • Image Interpretation, Computer-Assisted
  • Indicators and Reagents / pharmacology
  • Luminescent Measurements*
  • Ninhydrin / pharmacology
  • Spectrum Analysis
  • Surface Properties

Substances

  • 1,8-diazafluoren-one
  • Aza Compounds
  • Cyanoacrylates
  • Indicators and Reagents
  • Ninhydrin