A preliminary hearing in California is a court proceeding where a judge reviews the prosecution’s felony evidence and decides whether there is enough of it to send the case to trial. It happens after your arraignment, and in most cases it must be held within 10 court days of that date. The judge is not deciding whether you are guilty. The question is narrower: is there probable cause to believe a crime was committed and that you committed it? If the answer is no, the charges are dismissed before a trial ever begins.
What the Judge Is Actually Deciding
The hearing works as a filter on felony charges. A judge, sitting as the magistrate, looks at what the prosecution has and asks whether there is a rational basis to believe a crime occurred and that you were the one who committed it. That standard, probable cause, is far lower than the “beyond a reasonable doubt” standard that governs a trial. The prosecution does not have to prove its whole case here. It just has to show a reasonable foundation for one.
This step is required by the California Constitution. Article I, Section 14 says felonies must be prosecuted “either by indictment or, after examination and commitment by a magistrate, by information.”1FindLaw. California Constitution Article I Section 14 The “examination and commitment by a magistrate” is the preliminary hearing. The only other route is a grand jury indictment, and most California felonies take the preliminary hearing path.
When the Hearing Must Happen
Penal Code 859b gives both sides the right to a hearing “at the earliest possible time.” Unless you and the prosecution agree to waive that right, or the court finds good cause for a continuance, the hearing has to be held within 10 court days of your arraignment, your plea, or the reinstatement of criminal proceedings, whichever comes later.2California Legislative Information. California Code PEN 859b
What happens if that deadline slips depends on your custody status. If you are in jail and the hearing is set or pushed past 10 court days, the magistrate must dismiss the complaint, unless you personally waived the deadline or the prosecution demonstrated good cause.2California Legislative Information. California Code PEN 859b If you are out on bail or on your own recognizance and the delay was not your doing, you are entitled to be released from custody obligations, though the case itself can continue.
There is a hard outer limit too. The complaint must be dismissed if the hearing is set or continued more than 60 days after arraignment, plea, or reinstatement, unless you personally waive that right.2California Legislative Information. California Code PEN 859b Waiving time voluntarily gives up these deadlines. Defense attorneys sometimes recommend it to get more preparation room, but once you waive, the hearing can end up weeks or months out.
What Happens in the Courtroom
A preliminary hearing resembles a small trial, with a much narrower focus. There is no jury. The judge is the sole decision-maker. The prosecutor presents witnesses and evidence. Your attorney cross-examines those witnesses and challenges what is offered. You have the right to be present with counsel the entire time.
The defense can also call its own witnesses, either to establish an affirmative defense or to undermine an element of the charged offense. The magistrate can require an offer of proof before allowing that testimony and can limit it so the hearing does not turn into a full trial.
The Hearsay Rule That Shortens Most Hearings
One rule shapes California preliminary hearings more than any other. Penal Code 872(b), enacted through Proposition 115, lets the prosecution establish probable cause through the sworn testimony of a qualified law enforcement officer who relays what other people said, even though that testimony would be excluded as hearsay at trial.3California Legislative Information. California Penal Code 872 – Examination of the Case and Discharge of the Defendant or Holding Him to Answer The officer has to have at least five years of law enforcement experience or have completed a specialized training course.
In practice, this means the victim and eyewitnesses often do not appear at the preliminary hearing at all. A detective takes the stand and testifies about what they said. The defense can still cross-examine the officer, but questioning a detective about secondhand information is a different exercise than confronting the person who actually saw or experienced the events.
The Three Possible Outcomes
Held to Answer
If the judge finds probable cause, you are “held to answer.” The order states that a public offense was committed and that there is sufficient cause to believe you are guilty of it.3California Legislative Information. California Penal Code 872 – Examination of the Case and Discharge of the Defendant or Holding Him to Answer The case moves to the Superior Court’s trial division, and the district attorney files a formal charging document called the Information within 15 days of the commitment order.4Judicial Branch of California. California Rules of Court Rule 4.110 – Time Limits for Criminal Proceedings on Information or Indictment The Information replaces the original complaint and lays out the charges you will face at trial. The district attorney can charge you with any offense shown by the evidence at the preliminary hearing, not just the ones originally listed in the complaint.5California Legislative Information. California Penal Code 739 – Information Filed by District Attorney
Charges Dismissed
If the judge finds the evidence insufficient, the complaint is dismissed and you are discharged. The order will state that there is no sufficient cause to believe you are guilty of the charged offense.6California Legislative Information. California Penal Code 871 A dismissal at this stage is not always the end. The prosecution can refile, subject to the limits described below.
Wobbler Reduced to a Misdemeanor
Some California offenses are “wobblers,” meaning they can be charged as either a felony or a misdemeanor. At the preliminary hearing stage, the court can decide on its own motion or on a party’s motion that a wobbler should be treated as a misdemeanor, and the proceedings continue as though you had been arraigned on a misdemeanor complaint.7California Legislative Information. California Penal Code 17 That change can dramatically alter the penalties you face.
If You’re Held to Answer, You Still Have a Move
Losing at the preliminary hearing does not end your ability to challenge the charges before trial. Under Penal Code 995, you can file a motion in Superior Court to set aside the Information on the grounds that the magistrate lacked sufficient evidence to hold you to answer. A Superior Court judge then takes a second look at whether the preliminary hearing evidence actually supported probable cause. If the motion succeeds, the Information is set aside and the charges are dismissed, though the prosecution can still refile within the limits of Penal Code 1387.
How Many Times the Prosecution Can Refile
When charges are dismissed at the preliminary hearing or through a successful 995 motion, the prosecution does not get unlimited chances. Penal Code 1387 provides that a second dismissal of a felony, whether under Section 871, 995, or 859b, bars further prosecution for the same offense.8California Legislative Information. California Penal Code 1387 Generally, the prosecution gets one refile. If the case is dismissed a second time, it is over.
There are narrow exceptions. The prosecution can get around the two-dismissal bar by showing that substantial new evidence has been discovered that could not have been known through reasonable diligence, or that the earlier dismissal resulted from direct intimidation of a material witness.8California Legislative Information. California Penal Code 1387 These are hard to invoke, and the prosecution carries the burden. The statute of limitations still applies regardless of how many dismissals have occurred.
Should You Waive the Hearing?
You can waive your right to a preliminary hearing entirely. If you do, the case skips straight to the trial phase without any judicial review of the prosecution’s evidence. Giving up a chance at dismissal sounds strange, but there are real strategic reasons defense attorneys sometimes recommend it.
If you plan to plead guilty, the hearing may accomplish nothing beyond adding expense and exposing the sentencing judge to the worst facts of the case. In cases where the prosecution’s evidence is strong, putting witnesses on the stand under oath can lock them into their testimony and make them harder to negotiate with later. Waiving also avoids creating a hearing transcript the prosecution could use if a key witness becomes unavailable before trial. Some prosecutors offer more favorable plea terms in exchange for a waiver.
The trade-off is real. Waiving means you lose the chance to preview the prosecution’s case, test witness credibility, and potentially get charges dismissed or reduced. The decision should be made carefully with your attorney based on the specific facts and strategy of the case.
How This Differs From a Grand Jury Indictment
The Constitution provides two paths to prosecute a felony. One is a preliminary hearing followed by an Information. The other is a grand jury indictment. Both establish probable cause, but the two processes are very different.
A preliminary hearing happens in open court. You are present with your attorney, your attorney cross-examines every witness, and the judge acts as a neutral check on the prosecution’s evidence. A grand jury proceeding is conducted in secret. Neither you nor your attorney is present, there is no cross-examination, and the grand jury hears only the prosecution’s side before deciding whether to indict. Prosecutors sometimes choose the grand jury route in high-profile cases or when they want to shield sensitive witnesses. For defendants, the preliminary hearing is almost always the more favorable process.