What is a key rule concerning a photo array?

A key rule concerning a photo array is that it should be conducted as a serial single photo array done by an officer not involved in the case. This approach helps to ensure that the identification process is fair and unbiased. When a photo array is administered, the officer who presents the photos should not have any involvement in the investigation or prior knowledge of the case. This helps to prevent any influence over the witness’s decision, thereby increasing the reliability of the identification.

Additionally, conducting the photo array as a serial single array allows witnesses to focus on one individual at a time, reducing the chance of mistakes due to comparisons between multiple photos presented simultaneously. This method enhances the accuracy of witness identification, which is crucial for maintaining the integrity of the investigation and eventual legal proceedings.