Grand Jury vs. Preliminary Hearing: Felony Charges
In the United States, a felony charge typically reaches a trial court by one of two paths: a grand jury indictment, in which jurors review evidence in secret and vote on whether to charge, or a preliminary hearing, a courtroom proceeding where a judge decides whether enough evidence exists to move the case forward. The paths differ in who decides, what the defense can do, and how much is public.
A felony charge in the United States usually begins in one of two ways. In some jurisdictions, a prosecutor presents evidence to a grand jury, which decides in private whether there is probable cause to charge. In others, the prosecutor files a charging document directly and the case goes to a preliminary hearing, where a judge makes that same probable-cause decision in open court. Both routes produce a defendant who stands accused of a felony; they differ in who decides, how public the process is, and how much the defense can participate.
The phrase “probable cause” appears in both routes. It is a lower standard than the “beyond a reasonable doubt” standard used at trial: it means that a reasonable person could believe a crime was committed and that this defendant committed it. Neither route decides guilt. A grand jury indictment and a preliminary hearing bind-over are both accusations that allow the case to continue toward trial or a plea.
The Fifth Amendment to the U.S. Constitution requires that federal felony charges be brought by indictment unless the defendant waives that right. That constitutional text is the source of the grand jury’s central role in federal felony practice, and it is part of why some states treat the preliminary hearing as the alternative rather than the default.
How a grand jury works
A grand jury is a group of citizens — in federal courts, ordinarily between 16 and 23 people — summoned to review evidence presented by the prosecutor. The jurors sit for a set term, hearing many cases rather than one. The prosecutor calls witnesses and presents documents; the jurors may ask questions, and they vote on whether to return an indictment, sometimes called a “true bill.” If a majority agrees, the indictment issues and the case moves forward. The Federal Rules of Criminal Procedure govern this process in federal court, and the U.S. Department of Justice publishes background on the U.S. Attorneys who bring federal charges.
Secrecy and the defendant’s role
Grand jury proceedings are generally closed. The defendant does not have an automatic right to be present, to cross-examine the prosecution’s witnesses, or to call witnesses before the grand jury in most jurisdictions. Defense counsel is not permitted inside the grand jury room in federal practice. The practical effect is that the first detailed look at the prosecution’s evidence often comes later, through discovery after indictment, rather than at a contested hearing.
Purposes commonly given for secrecy
Courts and commentators commonly give several reasons for grand jury secrecy, including:
- protecting witnesses who may fear retaliation;
- preventing a target from fleeing before charges are filed;
- encouraging witnesses to speak freely;
- shielding a person who is investigated but never charged.
Federal Rule of Criminal Procedure 6 addresses these matters and sets out who may be present in the grand jury room.
How a preliminary hearing works
A preliminary hearing — also called a prelim, probable cause hearing, or examining trial in some states — is a courtroom proceeding before a judge, usually held within a relatively short period after a defendant’s first appearance. The prosecutor presents witnesses and evidence, and the defense may cross-examine and, in most jurisdictions, call its own witnesses. The judge then decides whether probable cause exists to believe the defendant committed the offense.
Possible outcomes
At the close of a preliminary hearing, the judge generally has three options:
- bind the case over for trial or further proceedings, finding probable cause;
- dismiss the charge, finding no probable cause — prosecutors may sometimes refile, subject to court rules and double jeopardy limits;
- reduce or amend the charge to a lesser offense.
A dismissal at this stage is not a verdict of innocence and does not bar later prosecution in every circumstance; the rules differ by jurisdiction. After either route, the case ordinarily proceeds to an arraignment, where the charge is read and a plea is entered.
Comparing the two routes
| Feature | Grand jury | Preliminary hearing |
|---|---|---|
| Who decides | Grand jurors, by majority vote | A judge |
| Public access | Closed to the public | Generally open, subject to closure |
| Defense participation | Limited; no right to be present or cross-examine | Cross-examination, and often defense witnesses |
| Where it happens | Private grand jury room | Courtroom |
| Typical result | Indictment when a majority agrees | Bind-over, dismissal, or amended charge |
What each route means for the defendant
For a defendant, the practical differences are about information and timing. A preliminary hearing is often the first and sometimes the only chance to hear the prosecution’s witnesses testify under oath before trial, which can shape later motions and defense strategy. A grand jury indictment, by contrast, typically arrives with little advance notice of the evidence behind it. Neither route allows the defense to test the full strength of the government’s case, and neither is a trial.
Both routes can also be waived. A defendant may agree to proceed by information, a charging document filed by the prosecutor without a grand jury, and some jurisdictions allow a defendant to waive a preliminary hearing. Waiving a preliminary hearing usually gives up the opportunity to cross-examine at that stage, in exchange for moving the case along or preserving issues for later.
Where this varies
The rules differ by state, court, and local practice. Some states use grand juries for all felony charges, others use them only for specific offenses (capital cases are a common example), and some have abolished the grand jury for most purposes in favor of a preliminary hearing or a prosecutor’s information. Federal felony practice under the Fifth Amendment begins with indictment unless waived. Timelines for holding a preliminary hearing, the degree of secrecy, whether the defense may call witnesses, and whether a preliminary hearing can be waived all vary. Court rules and local practice control, so procedures in one county may not match those in the next.
Records and terminology
Court records in these proceedings are labeled differently depending on the route. An indictment appears on a docket as a charging instrument returned by a grand jury; a preliminary hearing produces a transcript, and the judge’s decision may be recorded as a bind-over, a finding of probable cause, or a dismissal. Many state court records are available through the clerk of court, while federal criminal dockets are accessible through the federal courts’ public access system, described by the U.S. Courts. The Bureau of Justice Statistics publishes data on how felony cases move through state and federal courts, but individual case records come from the court that handled the matter.
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Frequently asked questions
Is a grand jury the same as a trial jury?
No. A trial jury, sometimes called a petit jury, hears one case in public and decides guilt beyond a reasonable doubt. A grand jury hears many cases in private, decides only whether probable cause exists to charge, and does not determine guilt or innocence.
Does an indictment mean the person is guilty?
No. An indictment is a formal accusation that permits the case to proceed. It reflects a finding of probable cause, not proof of guilt. A defendant is presumed innocent unless and until a court or jury finds otherwise after trial or a plea.
Can defense counsel attend a grand jury proceeding?
In federal practice, defense counsel is not permitted inside the grand jury room. State rules differ, and some states allow counsel to be present but outside the room or to appear after a witness testifies. The defendant generally has no automatic right to attend.
What happens if a preliminary hearing ends in dismissal?
A judge who finds no probable cause may dismiss the charge. That is not a finding of innocence, and in many jurisdictions a prosecutor may refile, subject to court rules and double jeopardy limits. The rules vary by state and by the procedural stage.
Can a defendant waive a preliminary hearing?
Many jurisdictions permit a waiver, sometimes as part of a plea arrangement or to speed the case along. A waiver generally gives up the chance to cross-examine prosecution witnesses at that stage, so the consequences depend on the local rules and the specific case.
Do all states use grand juries for felony charges?
No. Federal felony charges require indictment under the Fifth Amendment unless the right is waived, but state practice is mixed. Some states rely on grand juries broadly, some limit them to certain offenses, and others use preliminary hearings or a prosecutor’s information instead.
Written and reviewed by the InmateSearch.co Editorial Team. This page describes how the process generally works and is not legal advice.
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