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Lining up suspects in front of a one-way mirror and allowing eyewitnesses to choose which one is the perpetrator is standard police procedure. Yet DNA evidence has repeatedly revealed the limitations of this technique: Many prison inmates whose convictions hinged on eyewitness identification were later proven innocent by DNA testing.
Much like the trend toward nonlive procedures in criminal cases, eyewitness scientists have relied almost exclusively on photo lineups (though video lineups are becoming increasingly common, particularly in U.K. research).
An experiment was conducted in which the effectiveness of three line-up methods (live, video, and photographs) was compared. Participants witnessed a staged event and were subsequently required, by one of the three methods, to identify the target.
Lineups today rarely employ live participants, and with the move to still photographs has come a significant reduction of visual information that might be used for recognition. Lineup photographs are en face, they lack stereoscopic and motion cues that might reveal three-dimensional structure.
13 Ιουν 2019 · The procedure always consisted of the event (i.e., the crime video), lineup 1 and lineup 2. In Experiment 1, the initial delay (the delay between the event and lineup 1) was either 10 min or 3 days and the subsequent delay (the delay between lineups) was always 3 days.
1 Οκτ 2007 · These cases have caused criminal justice professionals to take a closer look at eyewitness evidence, specifically at the effectiveness of identifying suspects from photographic and live lineups. And recent studies on lineup structure and implementation have led to even more questions and disagreement in the field, highlighting the need for more ...
4 Νοε 2020 · Lineups and photo arrays are often presented to witnesses by police officers who know which lineup member is the suspect (single-blind lineup administration) rather than by officers who do not know (double-blind administration).
