The following excerpt is from U.S. v. Y. Hata & Co., Ltd., 535 F.2d 508 (9th Cir. 1976):
We reject appellants' contentions that the prosecution must present the grand jury with evidence it may have which would tend to negate guilt. Although some states have imposed a duty on the prosecution to disclose such evidence (see, e. g., Johnson v. Superior Court, 15 Cal.3d 248, 124 Cal.Rptr. 32, 539 P.2d 792 (1975)), the federal system continues to give wide discretion to the prosecution.
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