1. A Preliminary Hearing Tests Probable Cause, Not Guilt
Under Penal Code § 866(b), the hearing asks whether probable cause supports a felony charge. For charges filed by complaint, the magistrate asks whether an offense occurred and sufficient cause exists to believe the accused committed it. Indictments follow a different procedure.
The Hearing Uses a Lower Standard Than Trial
Trial requires proof beyond a reasonable doubt; this hearing requires sufficient cause to hold the defendant to answer. Presence near a crime scene may suggest involvement without establishing the conduct or intent required for the charge. The defense can identify that gap without proving innocence. Felony sentencing is not decided here.
A Holding Order Does Not Establish Guilt
Penal Code § 872(a) requires a holding order when the evidence shows an offense occurred and provides sufficient cause to believe the defendant committed it. Prosecutors may then file an information. The order does not settle witness credibility or admissibility at trial.
2. Witness Testimony and Hearsay Shape the Record
Witnesses and qualified officers may provide evidence of probable cause, including specified hearsay. A felony attorney can test whether their statements support the charges and satisfy statutory conditions.
Cross-Examination Can Expose Identification Problems
Penal Code § 865 permits cross-examination of witnesses. Counsel may test what a witness saw, observation time, and inconsistencies with earlier descriptions. Lighting and distance can affect identification. A discrepancy does not automatically defeat probable cause; the remaining evidence still matters. Related criminal evidence questions may arise later.
Qualified Officers Can Repeat Certain Statements
Under Penal Code § 872(b), a probable cause finding may rest partly or entirely on qualifying officer testimony about out-of-court statements. The officer must have five years of law enforcement experience or the required certified training. Qualifying retired officers are also covered.
An eyewitness may not need to appear personally, but an entire police report is not automatically admissible. Counsel can distinguish direct observations from secondhand accounts and unverified details.
Recordings and Forensic Results Need Context
Surveillance footage may show someone's presence without proving intent. A laboratory result may identify a substance without establishing possession. Messages can appear incriminating when earlier exchanges are missing. Counsel can separate proven facts from investigators' inferences. Missing context may affect probable cause.
3. Challenges Target Missing Elements and Testimony Limits
The defense compares each charge's elements against the evidence. Disputed identification, intent, or inconsistent accounts may weaken probable cause. Penal Code § 866(a) limits defense testimony when the prosecutor requests an offer of proof.
Missing Elements May Matter More Than General Denials
Some offenses require a particular mental state in addition to the underlying act. Presence at a location, or contact with an object, may not establish that intent. A focused challenge identifies the evidence offered for each disputed element instead of broadly denying the accusation.
Retain original messages, recordings, and witness information without alteration. See evidence preservation for handling relevant records. Penal Code § 1054.1 separately requires specified prosecution disclosures, but § 866(b) bars using the preliminary hearing as a general discovery procedure.
Defense Witnesses Must Address a Specific Issue
After the prosecution rests, the defense may offer witnesses. On the prosecutor's request, the magistrate requires an offer of proof and assesses whether the proposed testimony, if believed, would reasonably likely establish an affirmative defense, negate a charged element, or impeach prosecution testimony or a reported statement. Unrelated background testimony may be excluded.
4. Hearing Deadlines Depend on Custody and Waivers
Penal Code § 859b generally requires the preliminary examination within 10 court days after arraignment or plea, whichever is later, unless both sides waive the early-hearing right or good cause supports a continuance. Separate custody protections and a 60-day limit also apply.
The 10-Court-Day Rule Has Defined Exceptions
If a defendant has remained in custody solely on the complaint for at least 10 court days, setting the hearing beyond that period generally requires dismissal unless the defendant personally waived the deadline or prosecutors established good cause. Delay can also trigger release requirements, subject to statutory exceptions.
Custody, waivers, and court orders matter. A separate arraignment and bail hearing addresses release considerations.
The 60-Day Limit Requires a Personal Waiver
Section 859b separately requires dismissal when the hearing is set or continued more than 60 days after the applicable starting date, unless the defendant personally waives that right. Special starting rules apply after reinstatement of suspended criminal proceedings. More preparation time can be useful, but defendants should know which protection they are waiving before agreeing to a delay.
5. The Ruling Determines Whether Charges Continue

The magistrate may hold the defendant to answer or dismiss the complaint for insufficient cause. Neither outcome is a trial verdict. Next steps depend on the hearing record and applicable law.
A Holding Order Allows an Information and Further Challenges
Penal Code § 739 requires the district attorney to file an information within 15 days after commitment. It may include charges in the holding order or other offenses supported by the evidence before the magistrate. Under § 1382(a)(1), failing to meet the filing deadline generally requires dismissal absent good cause.
Following arraignment on the information, § 995 allows a motion to set it aside on specified grounds, including commitment without reasonable or probable cause. Further challenges remain possible.
Discharge Does Not Always End the Case
Under Penal Code § 871, the magistrate dismisses the complaint and discharges the defendant if the evidence does not establish sufficient cause. Under § 871.5, prosecutors may seek reinstatement within 15 days. If they litigate that motion to a decision, they cannot refile the dismissed action.
Otherwise, refiling may be permitted, subject to Penal Code § 1387 and its exceptions. Counsel should review the ruling and earlier dismissals before assessing further challenges.
29 Oct, 2026

