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Fingerprints

All articles tagged with #fingerprints

science2 months ago

Forensic Breakthrough Extracts Fingerprints from Bullet Casings

Researchers at Maynooth University have developed a new technique to recover high-detail fingerprints from heated bullet casings, potentially revolutionizing forensic investigations by allowing identification of shooters from evidence previously thought impossible to analyze. The method involves chemical reactions and electrical stimulation to reveal residues that survive the firing process, although further testing is needed to confirm its effectiveness on actual fired bullets.

via ScienceAlert|
#bullet-casings#fingerprints#forensic-breakthrough
science-and-technology1 year ago

"Rapid Fingerprint Detection with Jellyfish Protein Spray"

Scientists at the University of Bath have developed a forensics spray using a fluorescent protein found in jellyfish to detect fingerprints in seconds. The dye spray, which is water soluble and has low toxicity, enables rapid visualization of fingerprints at crime scenes and can even be used on week-old prints. The spray, made of two different colored dyes, binds selectively with the molecules in fingerprints, emitting a fluorescent glow that can be seen under blue light. This biologically compatible spray, based on a fluorescent protein found in jellyfish, does not interfere with subsequent DNA analysis of the fingerprints and is less messy than traditional powders. The team is collaborating with scientists from Shanghai Normal University to further improve the technology and make the dyes available for sale.

via BBC.com|
#fingerprints#fluorescent-dye-spray#forensics
crime1 year ago

"Gruesome Discoveries: Human Remains Uncovered in Long Island Park"

Human remains, believed to be from a man and a woman, were found in Southards Pond Park on Long Island, with body parts including arms, legs, and a head. The hands were missing fingerprints, and police are working to identify the individuals based on tattoos. The remains did not appear to have been outside for long, and the search of the park has been completed.

via The Independent|
#crime#fingerprints#human-remains
technology2 years ago

AI Challenges the Uniqueness of Our Fingerprints

Researchers at Columbia University have trained an AI tool to identify fingerprints from different fingers belonging to the same person, challenging the belief that each fingerprint is completely unique. The AI tool claims to be able to identify whether prints from different fingers come from one person with 75-90% accuracy, focusing on the orientation of ridges rather than traditional minutiae. While the study has potential implications for biometrics and forensic science, more research is needed to develop the technology further and address questions about its reliability in criminal casework.

via BBC.com|
#ai#biometrics#columbia-university
science-and-technology2 years ago

AI Challenges the Uniqueness of Fingerprints

Recent AI research challenges the belief that all fingerprints are unique, as undergrad researchers at Columbia Engineering found that the angles and curvature at the center of fingerprints could be the same across an individual. Using a deep contrastive network and a US government database of 60,000 fingerprints, the team discovered that the network could identify if prints were from the same person with 77 percent accuracy, potentially aiding in solving cold cases and prioritizing leads in ambiguous situations. The results are set to be published in Science Advances on January 12.

via The Register|
#ai#fingerprints#forensics