Bruce Vaughn, a Dallas-based trial consultant, also noticed an "unusually short distance" separating the juror's upper lip from the base of her nose.

Some psychologists who work in academics are hired as trial consultants when their expertise can be useful to a particular case.

Some legal psychologists act as trial consultants.

David Tunno, a trial consultant in Ventura, Calif., reviewed information on the individual jurors.

Singer was the first trial consultant to use social media as a strategy.

Becoming a trial consultant does not necessarily require a doctoral degree or even a bachelor's degree.

Outside lawyers said they expected Mr. Skilling to be coached by top trial consultants to ensure he maintains his composure on the stand.

Smith has also worked as a volunteer E.M.T., a trial consultant, medical study subject, and was a piano technician for ten years.

Several more are employed as trial consultants helping with jury selection, which begins Monday.

The Advocates has 23 professional trial consultants and offices in 17 major cities throughout the nation.