A major cause of miscarriages of justice could be avoided if computers, rather than detectives, guided witnesses through the identification of suspects. That's according to Brent Daugherty at the University of North Carolina in Charlotte and colleagues, who say that too often officers influence witnesses' choices.
The problem was highlighted in 2003 when the Innocence Project in New York analysed the case histories of 130 wrongly imprisoned people later freed by DNA evidence. Mistaken eyewitness identification was a factor in 77 per cent of the cases examined.
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