"One U.S. Court said this of the problems with eyewitness identification: 'We think it is evident that an identification of an accused made by a witness for the first time in the courtroom may often be of little testimonial force as the witness may have had opportunities to see the accused and to have heard him referred to by a certain name; whereas a prior identification, considered in connection with the circumstances surrounding its making, serves to aid the court in determining the trustworthiness of the identifications made in the courtroom'" (McAtlin 2009). Regarding jury consultants, every defendant has the right to a fair trial. Consultants can point out individuals who...

"Preparing" witnesses does not mean preparing them to disseminate inaccuracies. It can also help the witnesses present a clearer case and accurately present his or her genuine point-of-view in the face of cross-examination.
Works Cited

Cronin, C. (2006). Forensic Psychology. Kendall/Hunt Publishing Company.

McAtlin, Barbara Jean. Eyewitness identification -- Hindrance to justice?

Justice Denied. 2 (6). Retrieved May 26, 2009 at http://www.justicedenied.org/eyewitness.htm