Although Lindsay and Wells suggest that witness confidence has little or no relationship to witness accuracy, a recent field study found a substantial accuracy-confidence relationship when criminal-present photo lineups were used. However, findings on the accuracy-confidence relationship in criminal-absent lineups are not clear partially because of ambiguity in the definition of confidence in this situation. Moreover, little attention has been paid to the race of the person who constructs the photo or corporeal lineup. Recent research results lead to the prediction of greatest accuracy when the lineup constructor and lineup members are of the same race and the witness is of a different race. Issues in the applicability of the results of Bayesian analyses to the judicial system include the tendency to see researchers solely as advocates for the defense and the tendency of people to disregard statistical summaries, such as base rate data and research results, when making individual decisions. An additional issue concerns Bayesian diagnosticity ratios (derived from rates of correct and false identifications) which can be logically and statistically equivalent to one another but differ considerably in their legal applications and value relevance. Notes and 13 references are given. (Author abstract modified)