This paper is about the role of credibility of eyewitness testimony when it comes to investigations.
Eyewitness testimonies are of great importance for investigations and often are the main reason for suspects getting accused. Wrong statements by eyewitnesses can have fatal consequences for an innocent person. A conviction of an innocent person is an unbelievable incision in life. Even if the misidentified target does not get convicted, a charge can evoke emotional problems as well as bad reputation. These facts show the great importance of the reliability of eyewitnesses in our society. But according to Rademacher the credibility of eyewitness testimony is overestimated although it is of such a great importance.
The foundation of this elaboration is the hypothesis that says that eyewitnesses often make mistakes when it comes to a culprit's identification. Initially, background information regarding the perception and identification of a person are constituted. Afterwards, the experiment Matching faces to photographs with its implementation and results is examined to prove the thesis. Also, possible reasons for people´s misidentifications are given from which partly result suggestions for improvements for real-life situations.
Table of Contents
Introduction
Background information
Study
Results
Reasons for misidentifications
Conclusion
Bibliography
Objectives and Topics
This work examines the reliability and credibility of eyewitness testimony in criminal investigations, specifically focusing on the high potential for error during the identification of a perpetrator. The central research aim is to demonstrate that eyewitness memory is prone to mistakes and that the judicial reliance on such testimony, when used as sole evidence, can lead to wrongful convictions.
- Psychological mechanisms of face recognition and perception.
- Empirical analysis of the "Matching faces to photographs" experiment.
- Identification of systematic error sources such as age and race bias.
- Evaluation of presentation methods for police lineups and photo arrays.
- Proposals for optimizing identification procedures to increase accuracy.
Excerpt from the Book
Background information
Face recognition takes place in the temporal lobe of the human brain and its evolutionary reason is the advantage of recognizing quickly if a person is a friend or an enemy (Sporer, 1992). On the one hand it is proved that remembering and identifying well-known faces comes naturally to people, even if one has not seen the person for years. But on the other hand it is not as easy to identify faces of people which one has only seen once (Davies & Ellis & Shepherd, 1981). Eyewitnesses usually only have one chance to see a culprit. Thus, identifying them does not come naturally to eyewitnesses.
According to Clifford & Bull (1978), people are fixated on particular parts of the human face when looking at them. Therefore, they concentrate on the upper half of a face. Most attention is paid on the eyes (62 %), followed by the hairline, the eyebrows, the facial contour and the lips. Chin and nose get the least attention. Thus, the facial attributes that are easier to remember can be identified with a greater probability (Davies et al., 1971).
Summary of Chapters
Introduction: Outlines the significance of eyewitness testimony in legal contexts and introduces the hypothesis that witness identifications are often unreliable.
Background information: Explains the neurological and psychological foundations of face recognition and discusses factors that influence the ability to remember faces.
Study: Describes the methodology of the "Matching faces to photographs" experiment, involving 92 students to test the identification of targets under various conditions.
Results: Presents the findings of the experiment, highlighting the high variance in participant accuracy and the general risk of misidentification.
Reasons for misidentifications: Analyzes specific factors contributing to errors, including face perspective, own-race and own-age biases, and the design of photo lineups.
Conclusion: Synthesizes the findings and suggests practical improvements for police procedures to mitigate error sources in eyewitness testimonies.
Bibliography: Lists the academic books, journal articles, and online sources used for the research.
Keywords
Eyewitness testimony, face recognition, perpetrator identification, misidentification, criminal investigation, psychological bias, own-race bias, own-age bias, memory, reliability, forensic psychology, lineups, visual perception, witness accuracy, evidence.
Frequently Asked Questions
What is the core focus of this research paper?
The paper focuses on the reliability of eyewitness testimony and investigates why witnesses often fail to correctly identify a perpetrator.
What are the primary themes discussed in the work?
Key themes include the psychology of face recognition, the impact of various biases on witness memory, and the methodological flaws in traditional police identification procedures.
What is the central research question?
The research explores the hypothesis that eyewitnesses are prone to significant errors during the identification process and examines how these errors can be mitigated.
Which scientific methods were employed?
The author reviews existing psychological literature and analyzes the "Matching faces to photographs" experiment (Megreya & Burton, 2008) to validate the thesis regarding witness fallibility.
What topics are covered in the main body?
The main body covers the biological basis of face recognition, the empirical results of matching experiments, and specific reasons for misidentifications such as the "own-race bias" or the influence of lineup structures.
Which keywords characterize this paper?
Primary keywords include Eyewitness testimony, perpetrator identification, misidentification, own-race bias, and memory reliability.
How does the "own-race bias" affect the accuracy of eyewitnesses?
The research indicates that people are approximately 20% less accurate when identifying individuals from a different cultural heritage than their own.
What is the recommended approach for police when presenting photographs for identification?
The author suggests that presenting photographs successively rather than simultaneously and using a random order can help reduce the influence of comparative biases.
- Quote paper
- S H (Author), 2014, The credibility of eyewitness testimony. Regarding the identification of a perpetrator, Munich, GRIN Verlag, https://www.grin.com/document/383608
