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THE RELIABILITY OF IDENTIFICATION EVIDENCE WITH MULTIPLE LINEUPS

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Author(s): Melanie Sauerland | Anna K. Stockmar | Siegfried L. Sporer | Nick J. Broers

Journal: European Journal of Psychology Applied to Legal Context
ISSN 1889-1861

Volume: 5;
Issue: 1;
Start page: 49;
Date: 2013;

Keywords: Multiple lineups | change of view | rejections | foil selections | don’t know answers

ABSTRACT
This study aimed to establish the diagnostic value of multiple lineup decisions made for portrait, body, and profile lineups, including multiple target/suspect choices, rejections, foil choices, and don’t know answers. A total of 192 participants identified a thief and a victim of theft from independent simultaneous target-present or target-absent 6-person portrait, body and profile lineups after watching one of two stimulus films. As hypothesized, multiple target/suspect choices had incriminating value whereas multiple rejections, foil choices, and don’t know answers had mostly exonerating value. For suspect choices, the combination of all three lineup modes consistently elicited high diagnosticities across targets. Combinations of non-suspect choices (rejections, foil choices, or don’t know answers) were less successful and the different combinations showed less consistency in terms of diagnosticity. It was concluded that the use of multiple lineups, such as different facial poses and different aspects of a person should be particularly beneficial in three situations: if a witness only saw the perpetrator from a pose different than the frontal view normally used for lineups; if one or more witnesses saw the perpetrator from more than one perspective; and if different witnesses saw the perpetrator from different perspectives.
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