Evaluation of the use of chemical pads to mimic latent fingermarks for research purposes.

Details

Serval ID
serval:BIB_1CD26C2DD800
Type
Article: article from journal or magazin.
Collection
Publications
Title
Evaluation of the use of chemical pads to mimic latent fingermarks for research purposes.
Journal
Forensic science international
Author(s)
Steiner Romain, Moret Sebastien, Roux Claude
ISSN
1872-6283 (Electronic)
ISSN-L
0379-0738
Publication state
Published
Issued date
09/2020
Peer-reviewed
Oui
Volume
314
Pages
110411
Language
english
Notes
Publication types: Comparative Study ; Evaluation Study ; Journal Article
Publication Status: ppublish
Abstract
Fingermark detection is in constant evolution, with new techniques being developed and existing ones being continuously optimised. Recently, researchers have begun to express interest in artificial fingermark secretions to overcome the issues arising from the variability of fingermark composition. Some of these artificial secretions have started to appear on the market in the form of pads that can be used to deposit fingermarks with a known and controlled composition. This study aimed at assessing the reliability of three commercially-available pads by comparing the results to those obtained by real fingermarks, using six detection techniques (1,2-indanedione/zinc, ninhydrin, cyanoacrylate followed by rhodamine 6G staining, gold/zinc vacuum metal deposition, and physical developer) on five substrate types (copy and recycled paper, acetate, glass, and glossy paper). The results showed that the artificial fingermarks deposited with these pads reacted in an unreliable way, notably when treated with complex detection techniques such as Physical Developer. Further, the high concentration of some of the target compounds found in the artificial secretion led to an over performance of some detection techniques, which could mislead the operator to overestimating the efficiency of a given method. The resulting artificial fingermarks are considered too dissimilar to real fingermarks to be used as quality control standards and better simulants need to be found for a more efficient and realistic control of the variability.
Keywords
Cyanoacrylates, Dermatoglyphics, Electrochemical Techniques, Forensic Medicine/instrumentation, Gold, Humans, Indans, Indicators and Reagents, Ninhydrin, Reproducibility of Results, Rhodamines, Staining and Labeling, Zinc, Artificial secretion, IFRG guidelines, Simulant, Technique, detection, quality control
Pubmed
Web of science
Create date
03/08/2022 15:30
Last modification date
12/08/2022 10:03
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