Attorney General J.B. Van Hollen was right recently when he declared, “Murderers should fear forensic science.” Forensic science evidence can be a powerful tool against the guilty. It has also proven to be a powerful tool for exonerating the wrongly accused and convicted. [A column by Keith Findley, co-director of the Wisconsin Innocence Project. He is also president of the Innocence Network, an affiliation of more than 60 innocence projects around the world which filed a brief in the court of appeals challenging the ballistics expert’s claims in the case discussed.]