OPINION OF THE COURT
Memorandum.
The order of the Appellate Division should be reversed and a new trial ordered.
Before a sworn juror may be discharged as "grossly unqualified” (CPL 270.35), a trial court must — based on tactful and probing inquiry — be convinced that the juror’s knowledge will prevent that person from rendering an impartial verdict. The court may not speculate as to the possible partiality of a sworn juror based on equivocal responses (People v Buford,
We decline the People’s invitation to apply a harmless error analysis based on the proof of defendant’s guilt, or based on the fact that defendant participated in selecting the alternate who replaced the discharged juror. A defendant has a constitutional right to a trial by a " 'particular jury chosen according to law, in whose selection [the defendant] has had a voice’ ” (People v Buford, supra, at 297-298 [quoting People v Ivery,
Because a new trial is required, we further note that the court erred in failing to make a record of its Sandoval ruling, so that there might be appellate review of this determination (see, People v Culver,
Chief Judge Wachtler and Judges Simons, Kaye, Alexander, Titone, Hancock, Jr., and Bellacosa concur in memorandum.
On review of submissions pursuant to section 500.4 of the Rules of the Court of Appeals (22 NYCRR 500.4), order reversed, etc.
