How should a photo array be administered?

Administering a photo array using a double-blind procedure and showing each photo one at a time is critical for ensuring the reliability and validity of witness identifications. In a double-blind procedure, neither the witness nor the administrator of the photo array knows the identity of the suspect. This method minimizes the risk of unintentional cues or influence that could sway the witness’s judgment, promoting an unbiased identification process.

Presenting each photo individually helps to focus the witness’s attention on one image at a time, reducing the likelihood of confusion or suggestion that might occur when viewing multiple photos simultaneously. This method encourages a more thoughtful evaluation of each individual photograph rather than a comparative analysis that can lead to misidentification.

The other options do not adhere to best practices in administering a photo array. Showing all photos at once risks overwhelming the witness and may lead to choosing a photograph based on relative comparison rather than memory recall. Allowing witnesses to discuss their choices can introduce bias, as conversations may sway opinions or create social pressure that affects the decision-making process. Ensuring the suspect is always in a specific position, like the first spot, can lead to a biases where the witness may unconsciously favor identifying the suspect based on their position rather than their recollection of