Improving the quality of facial composites using a holistic cognitive interview

Area of Science:

• Psychology
• Forensic Science
• Cognitive Science

Background:

• Witnesses describe suspects and create facial composites using the Cognitive Interview (CI).
• Focusing on global facial aspects, rather than features, aids recognition and composite quality.
• The CI enhances the effectiveness of composite generation systems.

Purpose of the Study:

• To evaluate a novel "holistic" Cognitive Interview (H-CI) for improving facial composite creation.
• To assess if H-CI enhances the recognition of criminal suspects compared to standard CI.

Main Methods:

• Participants viewed a target video and later constructed a facial composite using either CI or H-CI.
• The H-CI included a descriptive phase (CI) and a recognition-enhancing phase with holistic properties.
• A standard composite system (PRO-fit) was used for all participants.

Main Results:

• Facial composites created after H-CI were correctly named over four times more often than those after CI.
• Improvements in composite quality were observed in both internal and external facial areas.
• H-CI led to a substantial increase in suspect identification accuracy.

Conclusions:

• The holistic Cognitive Interview (H-CI) significantly improves facial composite quality and recognition accuracy.
• H-CI offers a promising method for enhancing criminal suspect identification in police investigations.
• Attributing holistic properties during interviews can optimize facial composite generation.