This NIJ Special Report summarizes the proceedings of the October 4-6, 2001, and October 3-5, 2002, national conferences. The annual conferences bring together scientists, attorneys, and academicians to examine issues that arise at the intersection of the scientific and legal professions. The 2001 conference themes included how scientists can convey complex information to juries, standards for collecting and managing digital evidence, use of law enforcement personnel as expert witnesses, and the roles of court-appointed expert witnesses. The 2002 conference addressed emerging trends in scientific evidence, including new issues in forensic DNA, ethical issues facing forensic scientists, how attorneys can interpret scientific reports, genetic research, scientists' roles in counterterrorism, digital evidence, and the reliability of fingerprint evidence.