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Symposium: Alcohol intoxicated witnesses and suspects

Conference contribution
Authors Angelica Hagsand
Published in American Psychology Law Society (AP-LS) Annual conference. Seattle, USA: 16-18 March
Publication year 2017
Published at Department of Psychology
Language en
Keywords alcohol, witnesses, suspects, crimes, memory
Subject categories Psychology, Applied Psychology


Title symposium: Alcohol intoxicated witnesses and suspects Chair: Dr. Angelica V. Hagsand Moderator: Dr. Nadja Schreiber Compo Presentation 1: Hagsand, A., Wolfs, A., Diamond, O., Jafary, A., Schreiber Compo, N., & Evans, R. The effect of alcohol, and investigative interviewing approach on witness recall of an interactive event. Presentation 2: Altman, C., Schreiber Compo, N., Hagsand, A., McQuiston, D., & Cervera, J. Over the limit: Highly intoxicated witnesses’ ability to recall an event. Presentation 3: Flowe, H., Takarangi, M., Zelek, K., & Catanho, R. Effects of acute alcohol intoxication during encoding on accuracy, confidence, and grainsize regulation. Presentation 4: Evans, J., Schreiber Compo, N., Jafary, A., Wolfs, A., Hagsand, A., Holness, H., Rose, S, & Goldstein, N. The impact of intoxication and alcohol expectancies on suggestibility as measured by the Gudjonsson Suggestibility Scale. The symposium on alcohol intoxicated witnesses and suspects will present the latest state of the art research on important issues of this potentially vulnerable interviewee group within the legal arena. A large number of witnesses and suspects are intoxicated during the time of the crime/and or during the investigative interview, and actors within the legal arena (e.g., police, judges) are skeptical of the information provided by intoxicated interviewees. However, the research on this groups is still in its infancy. The present symposium will present data from both experimental and field studies, using different stimulus material (e.g., live event, mock crime video), disentangle the effect of different breath alcohol concentration levels (control, placebo, low, medium and high BAC) and other factors (e.g., interview approach) on a wide variety of different outcome variables (e.g., recall – quantity and quality, recognition – lineup and confidence, suggestibility). Learning objectives: 1) Learn about specific vulnerabilities of the intoxicated when interviewed. 2) Understand the importance of breath alcohol concentration in alcohol’s effect on interviewee behavior. 3) Learn about legal implications of alcohol intoxication in the interviewing room.

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