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- Title
Refreshing the Aged Latent Fingerprints with Ionizing Radiation Prior to the Cyanoacrylate Fuming Procedure: A Preliminary Study.
- Authors
Ristova, Mimoza M.; Radiceska, Pavlina; Bozinov, Igorco; Barandovski, Lambe
- Abstract
One of the crucial factors determining the cyanoacrylate deposit quality over latent fingerprints appeared to be the extent of the humidity. This work focuses on the enhancement/refreshment of age-degraded latent fingerprints by irradiating the samples with UV, X-ray, or thermal neutrons prior to the cyanoacrylate ( CA) fuming. Age degradation of latent fingerprints deposited on glass surfaces was examined through the decrease in the number of characteristic minutiae counts over time. A term 'critical day' was introduced for the time at which the average number of identifiable minutiae definitions drops to one-half. Fingerprints older than their 'critical day' were exposed to either UV, X-ray, or thermal neutrons. Identical reference samples were kept unexposed. All samples, both reference and irradiated, were developed during a single CA fuming procedure. Comparative latent fingerprint analysis showed that exposure to ionizing radiation enhances the CA fuming, yielding a 20-30% increase in average minutiae count.
- Subjects
OLDER people; FINGERPRINT databases; HUMAN fingerprints; CRIMINAL investigation; TOOL mark identification; CRIME laboratories; FORENSIC sciences
- Publication
Journal of Forensic Sciences, 2016, Vol 61, Issue 3, p787
- ISSN
0022-1198
- Publication type
Article
- DOI
10.1111/1556-4029.13020