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Double-Blind Lineup Administration

A double-blind lineup refers to a lineup procedure in which both the witness and the lineup administrator are unaware of which lineup member is the suspect under investigation. Scholars began recommending this procedure, in contrast to the typical procedure in which the lineup administrator knows which lineup member is the suspect, because of concerns that a nonblind administrator would unintentionally communicate to the witness the identity of the suspect, increasing the rate of mistaken identifications when the suspect is not the perpetrator. Laboratory research suggests that the use of double-blind lineups may decrease the rate of mistaken identifications, especially when other lineup procedures lead to an increase in identification rates.

Definition

When a photo or live lineup is administered to an eyewitness, it is common for the ...

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