دورية أكاديمية
Quantifying DNA loss in laboratory-created latent prints due to fingerprint processing.
| العنوان: | Quantifying DNA loss in laboratory-created latent prints due to fingerprint processing. |
|---|---|
| المؤلفون: | Carlin M; Forensic Sciences Graduate Group, University of California, Davis, CA, USA; Sacramento County District Attorney's Laboratory of Forensic Services, Sacramento, CA, USA; Michigan State Police, Forensic Science Division, Grand Rapids, MI, USA., Nickel R; Sacramento County District Attorney's Laboratory of Forensic Services, Sacramento, CA, USA., Halstead K; Sacramento Police Department, Sacramento, CA, USA., Viray J; Sacramento County District Attorney's Laboratory of Forensic Services, Sacramento, CA, USA., Hall A; Forensic Sciences Graduate Group, University of California, Davis, CA, USA., Ehrlich A; Forensic Sciences Graduate Group, University of California, Davis, CA, USA; Department of Environmental Toxicology, University of California, Davis, CA, USA. Electronic address: akehrlich@ucdavis.edu. |
| المصدر: | Forensic science international [Forensic Sci Int] 2023 Mar; Vol. 344, pp. 111595. Date of Electronic Publication: 2023 Feb 02. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Science Ireland Country of Publication: Ireland NLM ID: 7902034 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1872-6283 (Electronic) Linking ISSN: 03790738 NLM ISO Abbreviation: Forensic Sci Int Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Limerick : Elsevier Science Ireland Original Publication: Lausanne, Elsevier Sequoia. |
| مواضيع طبية MeSH: | Ninhydrin* , Dermatoglyphics*, Humans ; Forensic Medicine/methods ; Cyanoacrylates ; DNA ; DNA Fingerprinting |
| مستخلص: | Fingerprints, which are associated with touch samples, typically contain a limited amount of DNA. The amount of available DNA can be further reduced when the same touch samples undergo fingerprint processing [1]. The fingerprint development process consists of high-powered lighting (inherent luminescence and UV light) and chemical compounds (ninhydrin, black powder, cyanoacrylate, and rhodamine 6 G) which could reduce DNA quality and quantity. Therefore, forensic scientists often must select one type of analysis over the other due to the destructive nature of processing. DNA and latent fingerprinting are both useful sources for identification, although both can produce partial results. A partial DNA profile may only contain a few alleles, limiting the ability to identify a potential suspect to perform comparisons. A partial fingerprint generally means that only a very small part of the fingerprint is present, which makes comparisons difficult. Because partial results are common, combining data from both fingerprinting and DNA analysis would increase the confidence of an identification of a person. Significant research has been performed to determine if a DNA profile can be obtained from latent processed fingerprints; however, there has yet to be research done in a standardized manner. In this study, we used standardized mock "fingerprints" in order to reduce fingerprint DNA variability and specifically focused on DNA quantitation after each step in the fingerprinting process. Results suggest that latent print processing techniques used on non-porous surfaces (plastic, duct-tape, metal, and rubber) do not affect DNA quantity or quality. In contrast, ninhydrin, a chemical used for processing fingerprints present on porous surfaces (wood and paper), significantly reduced DNA recovery. Together these results suggest that DNA can still be performed on latent print processed items, unless ninhydrin has been used. (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: DNA profiling; Fingerprints; Forensic DNA analysis; Latent fingerprints; Trace DNA |
| المشرفين على المادة: | HCL6S9K23A (Ninhydrin) 0 (Cyanoacrylates) 9007-49-2 (DNA) |
| تواريخ الأحداث: | Date Created: 20230222 Date Completed: 20230307 Latest Revision: 20230307 |
| رمز التحديث: | 20230307 |
| DOI: | 10.1016/j.forsciint.2023.111595 |
| PMID: | 36805977 |
| قاعدة البيانات: | MEDLINE |
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