New Jersey Statutes Title 2B. Court Organization and Civil Code 2B § 21-2

a. A grand jury shall consist of not more than 23 persons selected from the panel of jurors summoned for service as grand jurors. The grand jurors shall be selected publicly and randomly, in the same manner as is provided by statute for the impaneling of petit jurors.

b. The Assignment Judge, or a Superior Court judge designated by the Assignment Judge, shall conduct the voir dire of members of the grand jury panel and shall decide all requests for excuse or deferral of service on the grand jury.

c. The Assignment Judge, or a Superior Court judge designated by the Assignment Judge, shall excuse any person from service on the grand jury if the person is a federal, State or local government police officer or prosecutor.

d. The prosecutor may object to the selection of any person as a grand juror on the basis of the person's inability to be impartial or on the grounds that the person does not meet the qualifications specified in N.J.S. 2B:20-1. The objections by the prosecutor shall be made on the record and shall be decided by the Assignment Judge.