Abstract
Among the 375+ wrongful convictions identified by the Innocence Project that were later overturned by DNA evidence resurrected from the crime scene, nearly ∼70% involved eyewitness testimony (www.innocenceproject.org). Courtroom identifications from an eyewitness can be tremendously powerful evidence in a trial. Yet memory is not a perfect video recording of events, and one’s recollection of the events surrounding an incident is even less reliable. In October 2014, the National Academy of Sciences (NAS) issued a landmark report evaluating the scientific research on memory and eyewitness identification. The Committee of researchers (psychologists, statisticians, sociologists) and judicial representatives (judges, attorneys) reviewed the published research on the factors that influence the accuracy and consistency of eyewitnesses’ identifications, conducted via laboratory and field studies. Steve Fienberg chaired the Committee that reviewed and ultimately authorized the release of that report. Unbeknownst to many, however, Steve himself played an important role behind the scenes by providing advice to the Committee that greatly strengthened the report. In this chapter, I will describe some of the research on memory and recollection relevant to eyewitness identification, the shortcomings in the statistical methods that had been used in evaluating laboratory studies, and Committee’s recommendations for standardizing procedures and further research using statistically designed experiments. The astounding insights that Steve provided to the Committee illustrate another one of many instances where Steve left his mark and made the world a better place.
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Notes
- 1.
innocenceproject.org, accessed 1 September 2021.
- 2.
For the heartbreaking details of this case, see www.thestory.org/stories/2013-06/jennifer-thompson.
- 3.
See http://theconversation.com/police-photo-lineups-how-background-colours-can-skew-eye-witness-identification-116329 for an example of a simultaneous lineup. The article notes the challenges in constructing a fair lineup, which include the potential bias from different background colors for all photographs and the instructions given to the eyewitness.
- 4.
The actual counts in Table 2 in Brewer and Wells [3] are: 299 (high similarity, target present); 300 (low similarity, target present); 301 (high similarity, target absent); 300 (low similarity, target absent). In each of these four conditions, ∼150 participants viewed a “biased” lineup and the other half viewed an “unbiased” (sometimes called “fair”) lineup.
- 5.
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Acknowledgements
An early version of this paper was presented at a workshop during the Probability and Statistics in Forensic Science program at the Isaac Newton Institute for Mathematical Sciences supported by EPSRC Grant Number EP/K032208/1. The author thanks the Institute for its hospitality and support during the program. The author also gratefully acknowledges her co-investigators on a grant from Arnold Ventures (Chad Dodson, Brandon Garrett, Joanne Yaffe). This chapter was prepared in part with support from this grant. The views expressed herein are solely those of the author and do not necessarily represent the views of Arnold Ventures or the Isaac Newton Institute.
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Kafadar, K. (2022). Statistical Issues in Assessing the Reliability of Eyewitness Identification. In: Carriquiry, A.L., Tanur, J.M., Eddy, W.F. (eds) Statistics in the Public Interest. Springer Series in the Data Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-75460-0_11
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