By any measure, Brady v. Maryland has not lived up to its expectations. Brady's announcement of a constitutional duty on prosecutors to disclose exculpatory evidence to defendants embodies, more powerfully than any other constitutional rule, the core of the prosecutor's ethical duty to seek justice rather than victory. Nevertheless, prosecutors over the years have not accorded Brady the respect it deserves. Prosecutors have violated its principles so often that it stands more as a landmark to prosecutorial indifference and abuse than a hallmark of justice. Moreover, as interpreted by the judiciary, Brady actually invites prosecutors to bend, if not break, the rules, and many prosecutors have become adept at Brady gamesmanship to avoid compliance.
Bennett L. Gershman, Litigating Brady v. Maryland: Games Prosecutors Play, 57 Case W. Res. L. Rev. 531 (2007), http://digitalcommons.pace.edu/lawfaculty/537/