Abstract
ABSTRACT Latent fingermarks contain precise information about the identities of individuals present at the crime scene. Cyanoacrylate (CA) fuming is a popular and effective technique for fingermark development on non-porous surfaces, but few approaches have been proposed for processing vehicles. We report the use of a large CA fuming chamber for latent fingermark development in vehicles related to serious crimes in Brasilia, Brazil. The chamber consists of a fuming compartment with a stainless-steel structure and is supplied with movable heating trays, air circulation fans, humidifying system, gas evacuation system, and an integrated control unit for process monitoring. Processing an entire regular vehicle requires 16 g of liquid CA and ~2 h. Identifiable fingermarks were recognized on the exterior and interior of the examined vehicles, including the door handles and the seat belt metallic tongue. Detected fingermarks were positively matched to individuals whose involvement in criminal activities was confirmed. The results support the efficiency of the CA fuming technique for fingermark development in the interior and exterior of vehicles and indicate certain parts of vehicles as being of potential interest. Considering the efficiency of the CA polymerization reaction for fingermark development in vehicles involved in crimes, large-scale chambers may offer important advantages.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
