A Project of the University of Michigan Law School and the MDefenders Program

Mistaken eyewitness identification expert report

This expert report collects and describes cutting edge social science describing the problems with eyewitness identifications including: the effects of poor lighting and distance (p. 5); the effects of a quick exposure and the problem of witnesses’ overestimating the length of exposure (p. 5-6); problems with cross-racial identifications (p. 6); problem if witness previously viewed […]

Brief Discussing the Science of Photogrammetry and Why a Police Officer Cannot Opine about a Person’s Height in a Surveillance Video

This brief challenges a police officer’s testimony opining that a shooter pictured in surveillance footage and the defendant were the same height.  The officer based his opinion on his visual observation of surveillance footage and measurements of the height of markings in the store. The Florida appellate court agreed that this was impermissible lay opinion […]

Amicus Brief – Preclude In-Court Identifications as Inherently Prejudicial

In-court identifications are inherently suggestive because they imply to the witness that the prosecutor has confirmed the witness’ initial identification. This brief argues that such an identification is more suggestive than a show-up and that the witness’ sense of accuracy artificially increases during subsequent identifications.

Brief – In-Court Identifications are Impermissibly Suggestive

Because of the inherently suggestive nature of in-court identifications, courts should (1) subject them to the same protections and scrutiny as suggestive pretrial identification procedures (pgs. 4-9 of brief); (2) update existing standards and law to align with social science and other, more protective jurisdictions (pgs. 13-22 of brief); and (3) recognize that in-court identifications […]