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      Interpol review of fingermarks and other body impressions 2016–2019

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          Abstract

          This review paper covers the forensic-relevant literature in fingerprint and bodily impression sciences from 2016 to 2019 as a part of the 19th Interpol International Forensic Science Managers Symposium. The review papers are also available at the Interpol website at: https://www.interpol.int/content/download/14458/file/Interpol%20 Review%20 Papers%202019. pdf.

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          Red-Emissive Carbon Dots for Fingerprints Detection by Spray Method: Coffee Ring Effect and Unquenched Fluorescence in Drying Process.

          Brightly red fluorescent carbon dots are synthesized hydrothermally and dissolved in diluted hydrochloric acid solution. Such carbon dots exhibit excitation-independent emission at about 620 nm with quantum yield over 10%, which is visible in daylight. After the carbon dots solution is sprayed to the fingerprints on various solid substrates and dried in air, clear fingerprints can be seen under an ultraviolet lamp and stay stable for 1 day. Detailed characterizations suggest that during the drying process, the coffee-ring effect and the electrostatic interactions between the carbon dots and the fingerprint residues prevent the typical aggregation-induced fluorescence quenching of carbon dots.
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            Fluorescent Nanomaterials for the Development of Latent Fingerprints in Forensic Sciences

            This review presents an overview on the application of latent fingerprint development techniques in forensic sciences. At present, traditional developing methods such as powder dusting, cyanoacrylate fuming, chemical method, and small particle reagent method, have all been gradually compromised given their emerging drawbacks such as low contrast, sensitivity, and selectivity, as well as high toxicity. Recently, much attention has been paid to the use of fluorescent nanomaterials including quantum dots (QDs) and rare earth upconversion fluorescent nanomaterials (UCNMs) due to their unique optical and chemical properties. Thus, this review lays emphasis on latent fingerprint development based on QDs and UCNMs. Compared to latent fingerprint development by traditional methods, the new methods using fluorescent nanomaterials can achieve high contrast, sensitivity, and selectivity while showing reduced toxicity. Overall, this review provides a systematic overview on such methods.
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              Cognitive bias research in forensic science: A systematic review

              The extent to which cognitive biases may influence decision-making in forensic science is an important question with implications for training and practice. We conducted a systematic review of the literature on cognitive biases in forensic science disciplines. The initial literature search including electronic searching of three databases (two social science, one science) and manual review of reference lists in identified articles. An initial screening of title and abstract by two independent reviewers followed by full text review resulted in the identification of 29 primary source (research) studies. A critical methodological deficiency, serious enough to make the study too problematic to provide useful evidence, was identified in two of the studies. Most (n = 22) conducted analyses limited to practitioners (n = 17), forensic science trainees (n = 2), or both forensic science practitioners and students (n = 3); other analyses were based on university student or general population participants. Latent fingerprint analysis was examined in 11 studies, with 1-3 other studies found in 13 other disciplines or domains. This set of studies provides a robust database, with evidence of the influence of confirmation bias on analysts conclusions, specifically among the studies with practitioners or trainees presented with case-specific information about the "suspect" or crime scenario (in 9 of 11 studies examining this question), procedures regarding use of exemplar(s) (in 4 of 4 studies), or knowledge of a previous decision (in 4 of 4 studies). The available research supports the idea of susceptibility of forensic science practitioners to various types of confirmation bias and of the potential value of procedures designed to reduce access to unnecessary information and control the order of providing relevant information, use of multiple comparison samples rather than a single suspect exemplar, and replication of results by analysts blinded to previous results.
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                Author and article information

                Contributors
                Journal
                Forensic Sci Int
                Forensic Sci Int
                Forensic Science International: Synergy
                Elsevier
                2589-871X
                17 March 2020
                2020
                17 March 2020
                : 2
                : 442-480
                Affiliations
                [1]École des Sciences Criminelles, Faculté de Droit, des Sciences criminelles et d’Administration publique, Quartier Sorge, Building Batochime, University of Lausanne, CH-1015, Lausanne, Dorigny, Switzerland
                Author notes
                []Corresponding author. Ecole des sciences criminelles (ESC) Faculté de droit, des sciences criminelles et d’administration publique Quartier Sorge / Batochime Université de Lausanne, CH-1015, Lausanne, Dorigny, Switzerland. Christophe.Champod@ 123456unil.ch
                Article
                S2589-871X(20)30013-9
                10.1016/j.fsisyn.2020.01.013
                7770454
                33385142
                1fa203b6-f3c2-4d16-a6ff-9cdecdfdd753
                © 2020 The Author(s)

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                : 6 January 2020
                : 16 January 2020
                Categories
                VSI: 19th Interpol International Forensic Science Managers Symposium 2019 Review

                Forensic science
                fingerprints,fingermarks,biometrics,bodily impressions,interpol
                Forensic science
                fingerprints, fingermarks, biometrics, bodily impressions, interpol

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