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Educing Information: Interrogation - National Intelligence University

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uses of hypnosis in interrogation”; Robert R. Blake and Jane S. Mouton,<br />

“The experimental investigation of interpersonal influence”; and<br />

Malcolm L. Meltzer, “Countermanipulation through malingering.”<br />

Biderman, A. D. (1963). An Annotated Bibliography on Prisoner <strong>Interrogation</strong>,<br />

Compliance and Resistance. DTIC – AD670999. Washington, DC:<br />

Bureau of Social Science Research.<br />

This bibliography contains about 200 items from the unclassified<br />

literature that appeared in 1953–1963 on prisoner interrogation,<br />

compliance and resistance.<br />

Blagrove, M. (1996). “Effects of Length of Sleep Deprivation on Interrogative<br />

Suggestibility.” Journal of Experimental Psychology: Applied 2 (1), 48-<br />

59.<br />

Blagrove investigates whether loss of sleep can cause people to<br />

acquiesce to leading questions as well as change their answers in<br />

subsequent interviews. In this study, subjects listened to two taped short<br />

stories and later, after one or two nights without sleep, answered a set of<br />

leading questions on information not contained in the stories. Using the<br />

Gudjonsson Suggestibility Scale, a standard measure of interrogative<br />

suggestibility, participants were scored on how many affirmative<br />

answers they gave to leading questions and on how often they changed<br />

answers after negative feedback. The study reveals that sleep-deprived<br />

individuals are more suggestible than control groups, due to lowered<br />

cognitive ability and the motivation to acquiesce.<br />

Cunningham, C. (1972). “International <strong>Interrogation</strong> Techniques.” Journal of the<br />

Royal United Services Institute for Defence Studies 117 (3), 31–34.<br />

Cunningham, former Senior Psychologist, POW <strong>Intelligence</strong>, UK<br />

Ministry of Defence, discusses the object of interrogation and reviews<br />

the three methods of interrogation: direct, indirect, and clandestine.<br />

This article was written in response to the UK’s 1972 Parker Report,<br />

which recommends authorized procedures for the interrogation of<br />

suspected terrorists.<br />

317

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