Data were analysed from 640 attempts by eyewitnesses to identify the alleged culprit in 314 lineups organized by the Metropolitan Police in London. Characteristics of the witness, the suspect, the witness's opportunity to view the culprit, the crime and the lineup were recorded. Data analysis, using mixed effects multinomial logistic regression, revealed that the suspect was more likely to be identified if the witness is younger than 30, the suspect is a white European (rather than AfricanCaribbean), the witness gave a detailed description, viewed the culprit for over a minute and made a fast decision at the lineup. None of the explanatory variables were significantly associated with a mistaken identification of a foil. No independent, statistically reliable effects of weapon focus, crossrace identification, or of the delay before the identification attempt were observed.

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Several different sources of evidence support the idea that visuo-spatial working memory can be segregated into separate cognitive subsystems. However, the nature of these systems remains unclear. Recently we reported data from neurological patients suggesting that information about visual appearance is retained in a different subsystem from information about spatial location. In this paper we report latency data from neurologically intact participants showing an experimental double dissociation between memory for appearance and memory for location. This was achieved by use of a selective dual task interference technique. This pattern provides evidence supporting the segregation of visuo-spatial memory between two systems, one of which supports memory for stimulus appearance and the other which supports memory for spatial location.