was sufficient to convict Weston under § 841(d)(2). In any event, the evidence in this case, which established not only that Mr. Anderson possessed piperidine, but also that he possessed numerous other chemicals used to manufacture PCP, that he acquired the chemicals surreptitiously, and that he acquired the chemicals in a cyclical pattern that suggested he was distributing them to a manufacturer, was far more substantial than the evidence in Weston. 4 . Although prejudice need not be shown when “the structural protections of the grand jury have been so compromised as to render the proceedings fundamentally unfair,” Bank of Nova Scotia, 487 U.S. at 257, 108 S.Ct. at 2374-75, Mr. Anderson raises no such claim. Cf. Vasquez v. Hillery, 474 U.S. 254, 106 S.Ct. 617, 88 L.Ed.2d 598 (1986) (<HOLDING>). Likewise, there is no allegation of systemic
holding that the prosecuting attorneys failure to instruct grand jurors on the record of the elements of the relevant criminal offenses warranted dismissal of the indictment without a showing of prejudice holding that a defendants guilty plea   forecloses independent inquiry into the claim of discrimination in the selection of the grand jury holding that racial discrimination is a personal injury tort holding that in the situation of a possible dismissal of an indictment because of possible grand jury tampering  only where knowing perjury relating to a material matter has been presented to the grand jury should the trial judge dismiss an otherwise valid indictment holding that racial discrimination in selection of grand jurors compelled dismissal of indictment