U.S. flag

An official website of the United States government, Department of Justice.

NCJRS Virtual Library

The Virtual Library houses over 235,000 criminal justice resources, including all known OJP works.
Click here to search the NCJRS Virtual Library

"I'm Innocent!": Effects of Training on Judgments of Truth and Deception in the Interrogation Room

NCJ Number
179059
Journal
Law and Human Behavior Volume: 23 Issue: 5 Dated: October 1999 Pages: 499-516
Author(s)
Saul M. Kassin; Christina T. Fong
Editor(s)
Richard L. Wiener
Date Published
October 1999
Length
18 pages
Annotation
This research examined the extent to which people can distinguish true and false denials made in a criminal interrogation, and it tested the hypothesis that training in the use of verbal and nonverbal cues increases the accuracy of these judgments.
Abstract
In Phase One, 16 participants committed one of four mock crimes (breaking and entering, vandalism, shoplifting, or a computer break-in) or a related but innocent act. Given incentives to deny involvement rather than confess, these suspects were then interrogated. In Phase Two, 40 observers were either trained in the analysis of verbal and nonverbal deception cues or not trained before viewing the videotaped interrogations and making their judgments. As in past studies conducted in nonforensic settings, observers were generally unable to distinguish between truthful and deceptive suspects. In addition, those who underwent training were less accurate than naive controls, although they were more confident and cited more reasons for their judgments. The implications of these findings are discussed in the context of what is known about police interrogations, false confessions, and the wrongful conviction of innocent suspects. 65 references