New Jersey Statutes Title 2B. Court Organization and Civil Code 2B § 21-7

a. An indictment may be found only upon concurrence of 12 or more grand jurors who either were present during, or who have read or listened to the record of, all of the proceedings concerning the indictment and who have examined all exhibits presented with respect to the indictment.

b. Whenever the indictment returned by the grand jury is against a police officer or other law enforcement officer for a person's death that occurred during an encounter with that officer acting in the officer's official capacity or while the decedent was in custody, pursuant to the investigation and indictment process set forth in paragraph (2) of subsection a. of section 11 of P.L.1970, c. 74 (C.52:17B-107), the judge who impaneled the grand jury shall designate a county of venue other than the county in which the incident, resulting in the officer's indictment, occurred, for the purpose of trial of the indictment.