Is a prosecutor's failure to instruct a grand jury concerning the evaluation and weight to be given an expert's testimony a violation of the prosecutor's duty as legal advisor to the grand jury?

The court also perceives no violation of the prosecutor's duty as legal advisor to the grand jury by failing to instruct its members concerning the evaluation and weight to be given an expert's testimony. "Grand Jury need not be instructed with the same degree of precision that is required when a petit jury is instructed on the law" (People v. Calbud, Inc., 49 N.Y.2d 389, 394, 426 N.Y.S.2d 238, 402 N.E.2d 1140); instructions are ".... sufficient if the District Attorney provides the Grand Jury with enough information to enable it intelligently to decide whether a crime has been committed and to determine whether there exists legally sufficient evidence to establish the material elements of the crime." People v. Calbud, Inc., 49 N.Y.2d pp. 394-395, 426 N.Y.S.2d 238, 402 N.E.2d 1140.