Neil v. Biggers
a case resulting in an influential 1972 U.S. Supreme Court decision in which the court identified factors that should be considered when assessing the validity of eyewitness identification. These factors are (a) certainty as to the identification, (b) delay between the witnessed event and identification, (c) ability to clearly view the witnessed event, (d) level of attention paid to the witnessed event, and (e) the accuracy of the witness’s initial description of the individual involved in the event.