Examining and expanding the friction ridge value decision.

Details

Serval ID
serval:BIB_A3497DF561F9
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Examining and expanding the friction ridge value decision.
Journal
Forensic science international
Author(s)
Eldridge H., DeDonno M., Furrer J., Champod C.
ISSN
1872-6283 (Electronic)
ISSN-L
0379-0738
Publication state
Published
Issued date
09/2020
Peer-reviewed
Oui
Volume
314
Pages
110408
Language
english
Notes
Publication types: Journal Article
Publication Status: ppublish
Abstract
The first step of a friction ridge examination involves determining the suitability-or value-of an impression. Often, this is interpreted as whether the impression is suitable for comparison. However, examiners tend to be variable in their suitability determinations, and suitability itself can be a multi-faceted decision, comprising suitability for comparison, suitability for exclusion, suitability for identification, suitability for AFIS entry, complexity, and others. We undertook a white box study to explore the different facets of suitability determinations and to measure the specific categories of information upon which examiners most heavily rely when reaching these decisions. Although minutiae count was the best indicator of a value determination, clarity and distortion were better predictors of complexity determinations. Examiners were found to be highly variable in their determinations, as well as in their annotations of what information they relied upon. Some unanimous decisions were reached for only high-quality impressions; there was never unanimity on "no value" determinations. Examiners tended to use high-confidence minutiae markers, even when there was connective ambiguity or low clarity. Several new suitability categorizations were introduced and had good usage from study participants, indicating that they might have some value for inclusion in routine casework.
Keywords
Friction ridge, Latent prints, Standardization, Suitability, Value, Variability
Pubmed
Web of science
Open Access
Yes
Create date
13/08/2020 9:07
Last modification date
23/10/2020 6:23
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