Simulating Interrogation in the Lab: Examining the Effectiveness of Physical Pain, Coercive Verbal Pressure, and Rapport-Building for Obtaining Reliable Information

S. Houck,Joeann M. Salvati,A. Vrij,L. Newman

Published 2021 in Journal of Applied Security Research

ABSTRACT

Abstract Three lab experiments used an interrogation simulation to examine the relative effectiveness of pain, coercive verbal pressure, and rapport-building for obtaining reliable information. Investigators questioned participants about information they were instructed to keep secret. We measured how many people gave reliable and unreliable information under pain (Study 1; N = 49), verbal pressure alone and in combination with pain (Study 2; N = 87), and verbal pressure and pain compared to a rapport-based interrogation (Study 3; N = 158). Results empirically support much of what field experts and scholars have previously claimed: pain and psychological coercion result in unreliable information.

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