Brady disclosure

In the legal system of the United States, a Brady disclosure consists of exculpatory or impeaching information and evidence that is material to the guilt or innocence or to the punishment of a defendant. The term comes from the 1963 U.S. Supreme Court case Brady v. Maryland,^[1] in which the Supreme Court ruled that suppression by the prosecution of evidence favorable to a defendant who has requested it violates due process.

Following Brady, the prosecutor must disclose evidence or information that would prove the innocence of the defendant or would enable the defense to more effectively impeach the credibility of government witnesses. Evidence that would serve to reduce the defendant's sentence must also be disclosed by the prosecution. In practice, this doctrine has often proved difficult to enforce. Some states have established their own laws to try to strengthen enforcement against prosecutorial misconduct in this area.