Sobre este episodio
Expert witnesses often give key testimonies at criminal trials and are allowed to give their own opinions. But what happens when their opinions don't reflect the facts?? "48 Hours" correspondent Susan Spencer, Harold Dow and Peter Van Sant report. This classic "48 Hours" episode last aired on 8/23/1999. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.