“…As we have discussed elsewhere (Brigham, Wasserman, & Meissner, 1999), several purported "safeguards" are available to defendants accused primarily on the basis of eyewitness evidence, including cross-examination by defense counsel, cautionary instructions to jurors, and expert testimony regarding eyewitness evidence. Although cross-examination has not been shown effective in allowing jurors to distinguish accurate from inaccurate eyewitnesses (R. C. Lindsay, Wells, & O'Connor, 1989; R. C. Lindsay, Wells, & Rumpel, 1981), cautionary jury instructions may have some potential (Cutler, Dexter, & Penrod, 1990;Greene, 1988;Katzev & Wishart, 1985), assuming that they contain accurate information.…”