In April 2007, the Judicial Conference Advisory Committee on Criminal Rules asked the Federal Judicial Center to update its 2004 report on local rules of the U.S. district courts, state laws, and state court rules that address the disclosure principles contained in Brady v. Maryland. Brady requires that prosecutors fully disclose to the accused all exculpatory evidence in the prosecutors' possession. Subsequent Supreme Court decisions have elaborated the Brady obligations to include the duty to disclose (1) impeachment evidence, (2) favorable evidence in the absence of a request by the...