When witnesses choose a suspect from a lineup, they sometimes identify the wrong person. To minimize such errors, psychologists recommend the following change in procedure:

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Presenting the suspects sequentially (one at a time) allows the witness to compare each person to their memory of the perpetrator, rather than comparing them to each other. This reduces the likelihood of choosing someone who looks similar but is not the actual culprit.

When Witnesses Choose a Suspect from a Lineup, They Sometimes