Preliminary Chemical Analysis of Latent Fingermarks Developed with Fire Extinguisher Dry Powder by Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging

Key Points

• Chemical analysis shows significant detail in latent fingermarks, identifying chemical components effectively.
• The study samples several latent fingerprints using matrix-assisted laser desorption ionization mass spectrometry imaging.
• Analysis focused on various dry powder agents used in fire extinguishers, revealing their influence on fingermark visibility.
• These findings suggest new avenues for forensic techniques, improving latent print detection methods.