—Appeal from a judgment of Ontario County Court (Doran, J.), entered June 2, 2000, convicting defendant after a jury trial of, inter alia, assault in the second degree.
It is hereby ordered that the judgment so appealed from be and the same hereby is unanimously reversed on the law and as a matter of discretion in the interest of justice, count three of the indictment is dismissed and a new trial is granted on counts one and two of the indictment.
Memorandum: Defendant appeals from a judgment convicting him after a jury trial of assault in the second degree (Penal Law § 120.05 [3]), resisting arrest (Penal Law § 205.30), and harassment in the second degree (Penal Law § 240.26 [1]). County Court erred in denying defendant’s challenge for cause to a prospective juror. During jury selection, the juror informed the court that he had attended school with a prosecution witness. The juror further admitted to defense counsel that he would tend to believe that witness “more than somebody that [he] did not know.” The juror did not provide an unequivocal assurance that he could put his bias aside and render a fair and impartial verdict. “If there is any doubt about a prospective juror’s impartiality, trial courts should err on the side of excusing the juror” (People v Arnold,
We also agree with defendant that the court’s instruction on the lawful duty element of assault in the second degree (Penal Law § 120.05 [3]) was improper. The court erred in instructing the jury that “lawful duty” was “performing an official function of any kind” and instead should have instructed the jury pursuant to CPL 140.25, which sets forth the duties of a peace officer (see generally, People v Greene,
