Related Experiment Video
Updated: Jan 26, 2026
09:09
Foreign Accent and Forensic Speaker Identification in Voice Lineups: The Influence of Acoustic Features Based on Prosody
Published on: September 27, 2024
830
Police lineups of the future?
Neil Brewer1, Nathan Weber1, Nicola Guerin1
1School of Psychology.
The American Psychologist
|April 19, 2019
Summary
Eyewitness confidence ratings can improve suspect identification accuracy. New methods analyzing maximum confidence values reveal more about witness memory, aiding in distinguishing guilty from innocent suspects in lineups.
Area of Science:
- Psychology
- Cognitive Psychology
- Forensic Psychology
Background:
- Eyewitness misidentification is a significant issue in the justice system.
- Traditional eyewitness identification procedures may not capture all relevant memory information.
Purpose of the Study:
- To investigate an alternative eyewitness identification procedure.
- To determine if maximum confidence ratings predict suspect guilt or innocence.
Main Methods:
- Six experiments were conducted with 1,669 adult and 273 child witnesses.
- Participants rated their confidence in the match between a suspect and lineup members.
- Maximum confidence values were analyzed for predictive accuracy.
Main Results:
- Higher maximum confidence ratings correlated with increased probability of suspect guilt.
- Suspects receiving lower than maximum ratings were more likely to be innocent.
- Confidence patterns predicted guilt even in challenging identification scenarios.
Conclusions:
- Witnesses possess probative memorial information beyond traditional lineup responses.
- Maximum confidence ratings offer a valuable, theoretically informed alternative for eyewitness identification.
- New guidelines are proposed for interpreting these confidence-based measures.
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