The Constitution guarantees criminal defendants the right “to be confronted with the witnesses against him”. But more and more cases are being decided based on DNA analysis and drug testing, not witness testimony. Last week, a divided Supreme Court ruled that lab technicians must testify on their results, citing recent reports of mistakes and poor practice in labs across the country. Tech Tuesday explores how questions about technology and science are influencing the nation’s courts.


  • David L. Faigman Professor of Law, University of California Hastings College of the Law; and author, "Laboratory of Justice: The Supreme Court's 200-Year Struggle to Integrate Science and the Law" (Owl Books)
  • Geoffrey S. Mearns Dean, Cleveland-Marshall College of Law, Cleveland State University; Member, National Academy of Sciences Committee on Identifying the Needs of the Forensic Science Community
  • Stephen B. Mercer Defense attorney in private practice, and an Adjunct Professor at the David A. Clarke School of Law at the University of the District of Columbia
  • Glenn Ivey State Attorney for Prince George's County, Maryland

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