Avental Withholding of Evidence Brady v Maryland Case law

Withholding of evidence violates due process "where the evidence is material either to guilt or to punishment. " Brady v. Maryland, 373 U.S. 83 (1963) was a landmark United States Supreme Court case in which the prosecution had withheld from the criminal defendant certain evidence. The defendant challenged his conviction, arguing it had been contrary to the Due Process Clause of the Fourteenth Amendment to the United States Constitution.