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How much is too much? The effects of real-world intoxication levels on eyewitness identifications.

Conference contribution
Authors Christopher Altman
Nadja Schreiber Compo
Dawn McQuiston
Angelica Hagsand
Robert Gonzalez
Jiselle Cervera
Odile Saint-Flour
Published in Oral presentation at the annual meeting of the American Psychology- Law Society (APLS) (Atlanta, USA).
Publication year 2016
Published at Department of Psychology
Language en
Keywords alcohol, witness memory, faces, lineup, accuracy
Subject categories Psychology, Psychology (excluding Applied Psychology)


Intoxicated witnesses often exceed the legal BAC limit of .08 (Evans et. al, 2009); however, little research has examined how high levels of intoxication impair eyewitnesses’ memory using a lineup procedure. This study tested witnesses’ memory across a broad BAC spectrum (.00-.32). Bar patrons were recruited to watch a mock crime video before making an identification from either a target-absent or target-present lineup. Results suggest that intoxicated witness’ identification performance parallels that of sober witnesses, but highly intoxicated witnesses are less confident in their identifications. Implications for collecting evidence from intoxicated witnesses are discussed.

Page Manager: Webmaster|Last update: 9/11/2012

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