There is increasing evidence that false eyewitness identification is the pr
imary cause of the conviction of innocent people. In 1996, the American Psy
chology/Law Society and Division 41 of the American Psychological Associati
on appointed a subcommittee to review scientific evidence and make recommen
dations regarding the best procedures for constructing and conducting lineu
ps and photospreads. Three important themes from the scientific literature
relevant to lineup methods were identified and reviewed, namely relative-ju
dgment processes, the lineups-as-experiments analogy, and confidence mallea
bility. Recommendations are made that double-blind lineup testing should be
used, that eyewitnesses should be forewarned that the culprit might not be
present, that distracters should be selected based on the eyewitness's ver
bal description of the perpetrator; and that confidence should be assessed
and recorded at the time of identification. The potential costs and benefit
s of these recommendations are discussed.