What is the current state of the law on the disclosure of personal information during an extended investigation?

'Brady v. State of Maryland merely holds that due process requires the government to produce upon request 'evidence favorable to an accused' which is 'material either to guilt or to punishment.' 373 U.S. at 87, 83 S.Ct. at 1197. It does not require the government to disclose the myriad immaterial statements and names and addresses which any extended investigation is bound to produce. Stokes contends that it is for defense counsel to determine what evidence is favorable to his client. We hold that the decision is one for the trial court, subject to appellate review.'