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Updated: Apr 25, 2026
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Holistic Facial Composite Creation and Subsequent Video Line-up Eyewitness Identification Paradigm
Published on: December 24, 2015
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Selecting fillers on emotional appearance improves lineup identification accuracy
Heather D Flowe1, Thimna Klatt1, Melissa F Colloff1
1School of Psychology, University of Leicester.
Law and Human Behavior
|August 19, 2014
Summary
Matching filler faces’ angry expressions to a suspect’s can reduce criminal face bias in eyewitness identification. This strategy improves lineup accuracy by mitigating the influence of perceived criminality on witness decisions.
Area of Science:
- Psychology
- Forensic Science
- Cognitive Science
Background:
- Eyewitness misidentification is a significant issue in the justice system.
- Criminal face bias, or the tendency to associate anger with criminality, can impair lineup accuracy.
- The emotional appearance of faces in lineups influences identification decisions.
Purpose of the Study:
- To investigate if matching the emotional appearance of lineup fillers to an angry suspect reduces criminal face bias.
- To determine if the emotional appearance of suspects and fillers affects recognition memory and discrimination accuracy in lineups.
Main Methods:
- Study 1: Mock witnesses (n=226) viewed lineups with suspects of varying expressions (angry, happy, neutral), with or without matching fillers. Additional participants (n=59) rated faces.
- Study 2: Participants (n=1,983) studied faces and completed a lineup test where target and filler emotional appearance was manipulated.
- Utilized mock witness and recognition memory paradigms to assess lineup identification accuracy.
Main Results:
- Mock witnesses were less likely to identify suspects who appeared angrier than fillers when filler expressions matched the suspect's.
- Identification accuracy improved when lineup fillers matched the emotional appearance of an angry target.
- Emotional appearance significantly impacts lineup identification and recognition memory.
Conclusions:
- Lineup member emotional appearance is critical for accurate eyewitness identification.
- Matching filler expressions to an angry suspect's can mitigate criminal face bias.
- Optimizing lineup composition by considering emotional expressions enhances identification reliability.
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