Deception Cues During High-Risk Situations: 911 Homicide Calls.

Area of Science:

• Psychology
• Forensic Science
• Communication Studies

Background:

• Deception cues are typically weak in everyday interactions.
• Theoretical frameworks suggest deception cues intensify during high-risk situations.
• 911 homicide calls represent a critical, high-stakes interaction context.

Purpose of the Study:

• To investigate deception cues in 911 homicide calls.
• To identify specific behavioral and narrative indicators of deception in this high-risk context.
• To validate a method for assessing deception in emergency calls.

Main Methods:

• Utilized a person-centered Q-sort methodology involving judges coding 86 behavioral cues.
• Analyzed 911 homicide calls from two samples (n=82 and n=64).
• Developed a deception scoring template based on Sample 1 findings and applied it to Sample 2.

Main Results:

• Deceptive callers exhibited heightened emotionality (e.g., nervousness, worry) and appeared overwhelmed.
• Narratives from deceptive callers lacked structure, clarity, and focus.
• A template-matching approach using computed deception scores differentiated deceptive from honest callers.

Conclusions:

• Specific deception cues are more prominent in high-risk interactions like 911 homicide calls.
• The person-centered Q-sort method is effective for identifying deception indicators in critical communications.
• Findings underscore the importance of analyzing communication patterns in forensic investigations.