Digital Detectives:Websleuthing Reduces Eyewitness Identification Accuracy in Police Lineups

Elphick, C. and Philpot, R. and Zhang, M. and Stuart, A. and Pike, G. and Strathie, A. and Havard, C. and Walkington, Z. and Frumkin, L.A. and Levine, M. and Price, B.A. and Bandara, A.K. and Nuseibeh, B. (2021) Digital Detectives:Websleuthing Reduces Eyewitness Identification Accuracy in Police Lineups. Frontiers in Psychology, 12. ISSN 1664-1078

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Abstract

Eyewitnesses to crimes sometimes search for a culprit on social media before viewing a police lineup, but it is not known whether this affects subsequent lineup identification accuracy. The present online study was conducted to address this. Two hundred and eighty-five participants viewed a mock crime video, and after a 15–20 min delay either (i) viewed a mock social media site including the culprit, (ii) viewed a mock social media site including a lookalike, or (iii) completed a filler task. A week later, participants made an identification from a photo lineup. It was predicted that searching for a culprit on social media containing the lookalike (rather than the culprit) would reduce lineup identification accuracy. There was a significant association between social media exposure and lineup accuracy for the Target Present lineup (30% more of the participants who saw the lookalike on social media failed to positively identify the culprit than participants in the other conditions), but for the Target Absent lineup (which also included the lookalike) there was no significant association with lineup identification accuracy. The results suggest that if an eyewitness sees a lookalike (where they are expecting to see the culprit) when conducting a self-directed search on social media, they are less likely to subsequently identify the culprit in the formal ID procedure.

Item Type:
Journal Article
Journal or Publication Title:
Frontiers in Psychology
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3200
Subjects:
ID Code:
154872
Deposited By:
Deposited On:
13 May 2021 09:05
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Jun 2021 09:14