A grand jury in New Jersey is a panel of 23 citizens that meets in secret to review evidence gathered by the county prosecutor and decide whether there is probable cause to formally charge someone with a serious crime. At least 12 of the 23 jurors must agree before an indictment can be returned. The panel does not decide guilt. It decides only whether the case has enough evidentiary weight to move forward into Superior Court.
What the Grand Jury Actually Decides
The legal standard the panel applies is probable cause, which is much lower than the “beyond a reasonable doubt” standard used at trial. Probable cause means the evidence, taken at face value and without hearing from the accused, would lead a reasonable person to believe a crime was committed and that the accused committed it.
The point of the step is to check prosecutorial power. Without it, a prosecutor could unilaterally file felony charges and force someone into an expensive court battle on thin evidence. Routing serious cases through an independent group of citizens first is meant to prevent that. The grand jury operates at the county level under the supervision of the Assignment Judge, who handles administrative oversight.
The panel is not passive. Grand jurors can subpoena witnesses, demand documents, and ask the prosecutor to dig deeper before voting. They can actively shape the case, not just approve what the prosecutor puts in front of them.
Who Serves on the Panel
Grand jurors are drawn randomly from the same pools used for trial jury service: voter registration rolls, driver’s license records, and other government databases. To qualify, a person must be a U.S. citizen, at least 18 years old, a resident of the county, and able to communicate in English. A felony conviction may disqualify someone. Law enforcement officers and prosecutors are automatically excluded.1Justia. New Jersey Revised Statutes Section 2B:21-2 – Impaneling Grand Jury
Selection differs from trial jury selection in important ways. Defense attorneys play no role. There are no peremptory challenges. The prosecutor may object to a specific juror only on grounds of impartiality or failure to meet basic qualifications, and the Assignment Judge decides those objections on the record.1Justia. New Jersey Revised Statutes Section 2B:21-2 – Impaneling Grand Jury The court relies primarily on questionnaires and self-disclosure to screen for conflicts.
Once the 23-member panel is seated, a foreperson and deputy foreperson are chosen randomly from the group. The foreperson administers oaths to witnesses, keeps order during sessions, and serves as the panel’s contact with the prosecutor’s office. Grand jurors are not assigned to a single case. They review many cases across a term that typically runs several months, meeting about one day per week.
Inside a Grand Jury Session
A grand jury session looks nothing like a trial. No judge presides. No defense attorney is present. The people in the room are the grand jurors, the prosecutor, a court clerk, a stenographer, and whichever witness is testifying at that moment.2NJ Courts. Proposed Amendment to Rule 3:6-6 – Who May Be Present at Session and Deliberations
The prosecutor runs the presentation. For each case, the prosecutor explains the alleged crime, walks through the legal elements the panel needs to consider, and presents evidence. That evidence can include physical items, forensic lab reports, surveillance video, financial records, and live testimony from investigators or civilian witnesses.3NJ Courts. Directive 23-06 – Grand Jury Standards Law enforcement officers often appear to summarize their investigations.
Evidence rules are far more relaxed than at trial. Hearsay is generally admissible, meaning a detective can relay what a victim or witness told them rather than requiring that person to appear in person. That relaxed standard reflects the panel’s limited job: screening for probable cause, not adjudicating guilt.
Grand jurors can ask questions of witnesses and can request that the prosecutor produce more evidence or call additional witnesses if the panel feels the picture is incomplete. When the presentation ends, everyone except the jurors leaves the room and deliberations begin.
Only One Side Is Presented
The prosecutor has no general obligation to present evidence that favors the accused. Grand jury proceedings are one-sided by design: the panel hears the prosecution’s case, not the defense’s. This is a structural feature of the system, and it is why defense attorneys treat indictment as a very likely outcome once a case has been presented to a grand jury.
The Vote: True Bill, No Bill, or Presentment
After the presentation, the panel votes. At least 12 of the 23 jurors must agree that probable cause exists.4State Rules. New Jersey Rule 3:6-8 – Finding and Return of Indictment; No Bill If the panel reaches that threshold, it returns a “true bill,” and the case moves to Superior Court for arraignment. The indictment is returned in open court to the Assignment Judge, though it may be sealed if the defendant has not yet been arrested or posted bail.
If the panel finds the evidence falls short, it returns a “no bill” and the charges are dismissed. The foreperson reports the no-bill decision in writing to the court, and any accused person being held in custody pending the grand jury’s decision is released.4State Rules. New Jersey Rule 3:6-8 – Finding and Return of Indictment; No Bill A no bill is not an acquittal. A prosecutor can re-present the same case to a new grand jury if additional evidence emerges.
A third and rarer option is a “presentment.” This is a formal statement outlining concerns about a situation without charging anyone. Presentments lack the legal force of an indictment but can call attention to systemic problems or recommend further investigation.
Why Everything Stays Secret
Secrecy is foundational. Everyone involved in the proceedings, including jurors, prosecutors, the court clerk, and the stenographer, is bound by strict confidentiality requirements under N.J.S.A. 2B:21-10 and Court Rule 3:6-7.3NJ Courts. Directive 23-06 – Grand Jury Standards Judiciary staff who attend grand jury sessions must take a formal secrecy oath. Violating grand jury secrecy can result in contempt of court charges.
The secrecy protects people who are investigated but never indicted from having their reputations damaged, shields witnesses from intimidation, and prevents targets from fleeing or tampering with evidence before an indictment is returned.
A few exceptions apply. Prosecutors can share grand jury materials with law enforcement for investigative purposes, typically with court approval. After an indictment is returned and not sealed, the defendant can request a transcript of the proceedings. Witnesses can discuss their own testimony publicly, but they cannot reveal jurors’ questions, deliberations, or internal procedures.
If You Are Called as a Witness
A grand jury subpoena is a legal command. If you receive one, you must appear and answer questions truthfully under oath. The subpoena can also require you to produce documents or other physical evidence.5NJ Courts. Where Can I Obtain Information on Subpoenas Ignoring it can result in contempt charges carrying fines or jail time.
Testifying can feel disorienting. No defense attorney is in the room. No one objects to how questions are framed. You answer whatever you are asked, and the jurors may ask follow-up questions of their own. You do have the right to step outside the grand jury room to consult your own attorney before answering any question. Your lawyer cannot come inside with you, but they can wait in the hallway, and you can leave to confer with them as often as you need.
Invoking the Fifth Amendment
A witness who believes a truthful answer would incriminate them can invoke the Fifth Amendment and refuse to answer that specific question. The right applies question by question. You cannot refuse to appear or decline to answer everything. You show up, take the oath, and assert the privilege on the individual questions where the risk exists.
When a prosecutor needs testimony from a reluctant witness, the court can compel it by granting immunity under N.J.S.A. 2A:81-17.3.6Justia. New Jersey Revised Statutes Section 2A:81-17.3 New Jersey grants “use and derivative use” immunity rather than full transactional immunity. Your compelled testimony and any evidence derived from it cannot be used against you in a criminal prosecution, but the state can still prosecute you using evidence obtained independently from other sources.7NJ Courts. Witness Immunity – Non 2C Charge Once immunity is granted, you lose the ability to invoke the Fifth Amendment on those topics. Refusing to testify after receiving immunity can result in contempt.
Perjury
Lying under oath before a grand jury is perjury, a third-degree crime in New Jersey.8Justia. New Jersey Revised Statutes Section 2C:28-1 – Perjury A conviction carries three to five years in prison.9Justia. New Jersey Revised Statutes Section 2C:43-6 – Sentence of Imprisonment for Crime Immunity does not protect against perjury charges. If you testify under a grant of immunity and lie, that testimony can be used against you in a perjury prosecution.
Witness, Subject, or Target
Not everyone connected to a grand jury investigation is in the same position. Prosecutors generally sort people into three categories. A witness has information relevant to the case but is not suspected of wrongdoing. A subject is someone whose conduct falls within the scope of the investigation. A target is someone the prosecutor believes committed a crime and intends to charge.
Targets sometimes receive a formal target letter identifying the statutes involved and advising them of their Fifth Amendment rights. A target may be invited to testify but is under no obligation to do so, and most defense attorneys advise against it. Anything a target says before the grand jury can be used against them. Receiving a target letter typically means an indictment is being actively pursued, and it is a signal to contact a defense attorney immediately.
State Grand Juries vs. Federal Grand Juries
If the alleged conduct violates federal law, the case goes to a federal grand jury rather than a New Jersey state one. The mechanics are similar. Federal grand juries also consist of 16 to 23 members and require at least 12 votes to indict.10Legal Information Institute. Federal Rules of Criminal Procedure Rule 6 – The Grand Jury Federal grand jurors in the District of New Jersey serve 18-month terms, substantially longer than state service.
The practical difference is jurisdiction. State grand juries handle violations of New Jersey criminal law such as assault, robbery, drug offenses, and fraud prosecuted under state statutes. Federal grand juries handle federal crimes like tax evasion, wire fraud, immigration offenses, and drug trafficking across state lines. Conduct that violates both state and federal law could theoretically produce separate grand jury proceedings in each system.