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Watching a videotaped eyewitness identification procedure sensitized mock jurors to potential bias. This led to fewer convictions based on single-blind identifications, highlighting the value of recording these critical identification steps.

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Area of Science:

  • Psychology
  • Law and Psychology
  • Forensic Psychology

Background:

  • Eyewitness identification is crucial in criminal trials.
  • Single-blind procedures may introduce administrator bias.
  • Juror sensitivity to identification suggestiveness is critical for justice.

Purpose of the Study:

  • To determine if observing a videotaped photo array or hearing expert testimony sensitizes jurors to suggestiveness in single-blind eyewitness identification.
  • To assess the impact of procedural reforms on juror decision-making.

Main Methods:

  • Mock jurors (N=231) viewed a simulated robbery trial with eyewitness identification as key evidence.
  • Independent variables included single-blind vs. double-blind photo arrays and the presence of a videotaped procedure or expert testimony.
  • Dependent variables included conviction rates and juror perceptions.

Main Results:

  • Exposure to the videotaped photo array procedure sensitized mock jurors to suggestiveness, reducing conviction rates for single-blind identifications.
  • Videotaping decreased favorability ratings of the eyewitness, regardless of lineup blindness.
  • Expert testimony did not significantly sensitize jurors to administrator bias.

Conclusions:

  • Videotaping eyewitness identification procedures can serve as a procedural reform.
  • This reform can create a record of suggestiveness and improve juror evaluation of eyewitness evidence.
  • Current expert testimony may be insufficient to sensitize jurors to subtle procedural biases.