CCTV, Live and Videotapes: How Presentation Mode Affects the Evaluation of Witnesses

摘要: Landstrom, S. (2008). CCTV, Live and Videotapes: How Presentation Mode Affects the Evaluation of Witnesses. Department Psychology, University Gothenburg, Sweden Videotaped closed circuit testimonies are often used in legal procedures, but little is known about psychological effects these courtroom technologies. The present thesis examines how different presentation modes affect observers’ perception, veracity assessment memory. In Study I truth-telling lying adult witnesses were interviewed. Mock jurors (N = 122) viewed testimonies, either live or on video, rated their perception assessed witnesses’ statements. observers appearance more positive terms them as being honest than did video observers. Furthermore, both deception detection performance was at chance level (49.2% vs. 50.8%). incorrectly believed they had a better memory statements structurally similar to (but child witnesses). 136) children’s (either video), children veracity. convincing overall 59.6%, which significantly from chance. chance, not observers, assessing Moreover, also showed performance. III by mock 240) live, via two-way closed-circuit television (CCTV), pre-recorded video. results that perceived CCTV who turn accuracy mediocre (58.3%). IV investigated camera perspectives adults’ videotaped testimonies. Truth-telling interviewed simultaneously four cameras, each taking visual perspective (close-up shot/child only, medium interviewer, long interviewer). 256) Children seen shot terms, close-up having think harder. adult’s level. Taken together, mode affected Thus, suggests policy-makers should consider outcome psycho-legal research when establishing and/or reforming standards for police interviews procedures.