How Does Discovery Work in a California Criminal Case? Penal Code 1054 and Brady Explained

Q: Can I get a copy of the police report in my own criminal case?

Yes, through your lawyer. The arrest report is produced to the defense at or shortly after arraignment under Penal Code section 1054.1, and your attorney will review it with you. Counsel may not give you the addresses or phone numbers of victims or witnesses under Penal Code section 1054.2, so copies provided to clients are often redacted. If no case has been filed yet, the agency may release a report through a records request, though many agencies withhold reports while a case is under investigation.

Q: Can I get body camera footage of my arrest?

Yes, and it is one of the first things to request. Body-worn camera and dash camera footage held by the investigating agency is discoverable under Penal Code section 1054.1 as real evidence and as recorded statements, and the defense should request it in writing immediately after arraignment because retention periods vary by agency. Footage of incidents involving serious uses of force is separately available to the public under Penal Code section 832.7.

Daniel Gramling, Esq.

2 minutes ago

12 min read

What Is Discovery in a California Criminal Case?

The short answer: discovery is the legal process that forces the prosecution to hand over the evidence it has against you, and the evidence that helps you, before trial. In California it is governed by Penal Code section 1054 through Penal Code section 1054.10, enacted by Proposition 115 in 1990, and by the federal constitutional duty recognized in Brady v. Maryland (1963) 373 U.S. 83. The prosecutor must disclose witness names and statements, your own statements, physical evidence, expert reports, test results, felony convictions of material witnesses, and any exculpatory evidence. The defense has reciprocal obligations. The exchange is supposed to happen at least 30 days before trial, but in practice it is a fight that begins at arraignment and often decides whether a case in Riverside, San Bernardino, Apple Valley, or Los Angeles is tried, dismissed, or pleaded. A criminal defense lawyer who presses discovery early finds the holes that a police report hides.

Why the police report is not enough. At arraignment under Penal Code section 988 you or your lawyer usually receive the complaint and a copy of the arrest report. That report is the officer's narrative, written to justify the arrest. It does not include the body camera footage, the 911 recording, the dispatch log that shows what the officer was told before arriving, the breath machine maintenance records, the phone extraction report, the lab bench notes, or the prior statements of the witnesses. Those are what discovery produces, and they are where cases are won, as we explain in What Makes a Criminal Case Weak in California?.

What the Prosecutor Must Disclose Under Penal Code 1054.1

The statutory list. Penal Code section 1054.1 requires the prosecuting attorney to disclose to the defense, if it is in the possession of the prosecutor or the investigating agencies, (1) the names and addresses of the people the prosecution intends to call as witnesses at trial, (2) statements of all defendants, (3) all relevant real evidence seized or obtained as part of the investigation, (4) the existence of a felony conviction of any material witness whose credibility is likely to be critical to the outcome, (5) any exculpatory evidence, and (6) relevant written or recorded statements of witnesses, or reports of the statements of witnesses, including expert reports and the results of physical or mental examinations, scientific tests, experiments, or comparisons the prosecutor intends to offer at trial. The duty covers material held by the police agency that investigated the case, not only what sits in the prosecutor's file.

Brady material is broader than the statute. The constitutional duty under Brady v. Maryland requires disclosure of evidence favorable to the accused that is material to guilt or punishment, whether or not the defense asks for it. Giglio v. United States (1972) 405 U.S. 150 extends the duty to evidence that impeaches a prosecution witness, including promises of leniency to an informant or a cooperating codefendant. Kyles v. Whitley (1995) 514 U.S. 419 holds that the prosecutor is responsible for favorable evidence known to the police even if the prosecutor never personally saw it, and that materiality is judged by the cumulative effect of everything withheld. Penal Code section 1054.1, subdivision (e), codifies the exculpatory evidence duty, and California courts treat a Brady violation as a due process violation independent of the statute.

What this looks like in a real case. In a domestic violence case it means the 911 audio, the body camera footage of both parties, the photographs taken at the scene, and the complaining witness's later recantation to a victim advocate. In a DUI case it means the breath instrument's calibration and maintenance logs, the officer's training records on field sobriety tests, the dash and body camera footage of the stop, the blood draw documentation, and the laboratory's chromatograms, which we discuss in How to Beat a DUI in Riverside County. In a drug or theft case it means the search warrant affidavit, the chain of custody records, the store surveillance footage, and any informant agreement. In every case it means the dispatch records that show what the officer knew before the stop, which is where a motion to suppress under Penal Code section 1538.5 begins, as explained in What Is a 1538.5 Motion and When Can You File One?.

What the Defense Must Disclose

Reciprocal discovery under Penal Code section 1054.3. Proposition 115 made California discovery a two-way street. Penal Code section 1054.3 requires the defense to disclose the names and addresses of the witnesses it intends to call at trial, other than the defendant, any relevant written or recorded statements of those witnesses or reports of their statements, expert reports and the results of tests or experiments the defense intends to offer, and any real evidence the defense intends to offer. The California Supreme Court upheld the reciprocal scheme against constitutional challenge in Izazaga v. Superior Court (1991) 54 Cal.3d 356.

What the defense does not have to disclose. The defense never has to turn over the defendant's own statements to counsel, the attorney's notes, legal research, or the theories and impressions that make up attorney work product under Penal Code section 1054.6. The duty attaches only to witnesses and evidence the defense actually intends to use at trial, so investigation that turns up nothing useful stays private. Deciding what to disclose and when is a strategic call that affects how the prosecution prepares, and it is one reason a lawyer, not the client, should control communications about potential witnesses.

The defendant's own investigation. Nothing stops you from preserving your own evidence while the formal process runs. Screenshots of text threads with timestamps, the names and numbers of people who were present, photographs of injuries or property, receipts and location data that fix your whereabouts, and a written timeline prepared for your lawyer all matter. How text messages are authenticated and used on both sides is covered in Can the Police Use Your Text Messages Against You in California?.

When Discovery Is Due: Deadlines and Timing

The 30-day rule. Penal Code section 1054.7 requires disclosure at least 30 days before trial, unless good cause is shown, and material that comes into a party's possession within 30 days of trial must be disclosed immediately. Good cause includes threats to witness safety, possible loss or destruction of evidence, and compromise of other investigations, and the court can issue a protective order delaying or restricting disclosure on those grounds. In practice prosecutors in Riverside and San Bernardino County provide the initial report at arraignment and supplemental discovery in batches through the pretrial conferences we describe in What Is a Pretrial Conference in a California Criminal Case?.

Discovery before the preliminary hearing. The 30-day rule is keyed to trial, not to the preliminary hearing, so in a felony case the defense often goes into the prelim with the arrest report, the complaint, and whatever the prosecutor has voluntarily provided. Brady obligations still apply, and a defense lawyer who sends a written request immediately after the felony arraignment usually has the body camera footage before the hearing. What the prelim is for, and why cross-examining the officer there matters, is in What Actually Happens at a Preliminary Hearing in California.

Evidence that disappears if nobody asks. Many agencies retain 911 recordings, dispatch audio, jail calls, and surveillance footage for limited periods, and private businesses often overwrite video within days or weeks. A preservation letter to the agency and to any private business, sent in the first days after arrest, is the only reliable way to keep that evidence in existence. When the state loses or destroys evidence, the remedy depends on its apparent value and the officers' good faith under California v. Trombetta (1984) 467 U.S. 479 and Arizona v. Youngblood (1988) 488 U.S. 51, and that standard is hard to meet unless the defense can show the evidence was requested while it still existed.

How to Compel Discovery: Informal Requests, Motions, and Sanctions

The informal request comes first. Penal Code section 1054.5 requires the party seeking discovery to make an informal request and allows a motion to compel only if the opposing party has not complied within 15 days. In the Riverside Hall of Justice, the San Bernardino Justice Center, the Victorville courthouse, and the Los Angeles County courthouses, defense counsel sends a written discovery letter listing the specific items, the dates, and the agencies, and follows up at each pretrial conference. A generic request produces a generic response, so the letter should name the body camera serial numbers, the breath instrument, the CAD incident number, and the specific witnesses.

The motion to compel and the available sanctions. If the prosecution does not comply, the court can order immediate disclosure, grant a continuance, order the prosecution to disclose the information to the jury, exclude the testimony of a witness whose statement was withheld, and impose contempt sanctions, all under Penal Code section 1054.5. Exclusion of evidence is a last resort available only after other sanctions have been exhausted, and dismissal is not an authorized discovery sanction except where required by the Constitution. The jury can also be instructed that it may consider the late disclosure in evaluating the evidence. In practice the most useful sanction is the continuance, because a trailing trial date with discovery still outstanding pushes prosecutors toward a better offer or a dismissal, as we explain in How to Get Criminal Charges Dismissed in California.

Police personnel records are different. Complaints against the arresting officer for dishonesty or excessive force are not produced through ordinary discovery. They require a Pitchess motion under Evidence Code section 1043 and Evidence Code section 1045, supported by a declaration showing good cause, after which the judge reviews the file in chambers. The prosecution's Brady duty and the Pitchess procedure interact, and the California Supreme Court addressed how prosecutors must handle officers on a Brady list in People v. Superior Court (Johnson) (2015) 61 Cal.4th 696. The full procedure is in What Is a Pitchess Motion? Evidence Code 1043 Explained. Since 2019, certain records involving officer shootings, serious force, sustained findings of sexual assault, and sustained findings of dishonesty are public under Penal Code section 832.7, and defense counsel can request them directly from the agency.

Third-party records require a subpoena. Medical records of a complaining witness, a business's surveillance footage, a school's records, or a phone carrier's records are not in the prosecutor's possession and are obtained by a subpoena duces tecum issued through the court, often with a hearing on the third party's privacy objections. Records protected by a privilege, such as a counseling privilege, require a showing of need and in-camera review. This is slower than statutory discovery and must be started early.

Discovery Rules That Protect Witnesses and the Defendant

Addresses stay with the lawyer. Penal Code section 1054.2 prohibits defense counsel from disclosing the address or telephone number of a victim or witness to the defendant, the defendant's family, or anyone else, except as the court permits. Violating this rule is a misdemeanor and can get a lawyer removed from the case. A client who wants to contact a witness directly should understand that the lawyer cannot share that information and that contact with a protected person in a domestic violence case violates the criminal protective order under Penal Code section 136.2, as discussed in Criminal Protective Orders Under Penal Code 136.2.

Your statements belong to you. Everything you said to the police, whether in a recorded interview, in the back of a patrol car, or on a jail phone, must be disclosed under Penal Code section 1054.1, subdivision (b). Reviewing those recordings with your lawyer before any plea is essential, because they are the basis for a Miranda challenge under Miranda v. Arizona (1966) 384 U.S. 436 and they often contain the only evidence of an element the prosecution cannot otherwise prove. Our guides Understanding Your Rights When Questioned by Police and Can I Talk My Way Out of Charges in California? explain why those recordings exist in the first place.

Post-conviction discovery. Penal Code section 1054.9 allows a person sentenced to death, life without parole, or a term of 15 years or more to obtain discovery materials after conviction in connection with a habeas petition or a motion to vacate, after a showing that good faith efforts to obtain them from trial counsel failed. For other cases, post-conviction access to the file depends on trial counsel's records and public records requests.

How Discovery Shapes the Outcome of a Case

Discovery drives the plea offer. Prosecutors in San Bernardino County and Riverside County set initial offers from the arrest report. Offers improve when the defense demonstrates, with the prosecution's own body camera footage or lab records, that an element is missing or an officer's account is contradicted. The sequence of discovery review, a targeted motion, and a renewed negotiation is how most cases that are not dismissed get resolved favorably, and it is why accepting an offer at arraignment, before any discovery beyond the report has arrived, is usually a mistake, as we explain in Should You Take a Plea Deal in California?.

Discovery exposes the weak case. The common defects, a stop with no articulated reason, a witness whose story changed between the 911 call and the written statement, a breath test with a skipped observation period, or a search that went beyond the warrant, are invisible in the report and obvious in the underlying records. The habits prosecutors rely on when building a file are described in How Prosecutors Build Criminal Cases in California, and the same records are what a Penal Code section 995 motion after a preliminary hearing depends on, as covered in What Is a 995 Motion?.

Public defender or private counsel. Public defenders in Riverside and San Bernardino County know the discovery process well, but caseloads limit how many preservation letters, subpoenas, and follow-up requests any one lawyer can send. A privately retained lawyer with a smaller caseload can send the preservation letter the day of retention and chase the agency weekly. The tradeoffs are discussed in Public Defender vs. Private Attorney in California, and Gramling Law Group handles misdemeanor and felony cases on a flat-fee basis that includes the discovery and motion work rather than billing it by the hour.

Where the discovery fight happens. Discovery disputes are heard by the trial court assigned to the case, whether that is the Riverside Hall of Justice, the Southwest Justice Center in Murrieta, the Larson Justice Center in Indio, the San Bernardino Justice Center, the Rancho Cucamonga or Fontana courthouses, the Victorville courthouse serving Apple Valley, Hesperia, and Adelanto, the Barstow courthouse, the Clara Shortridge Foltz Criminal Justice Center in downtown Los Angeles, the Van Nuys, Pomona, Long Beach, or Torrance courthouses, the Orange County justice centers, or the Ventura County Hall of Justice. Each courthouse has its own local practice for how discovery is transmitted and how motions are calendared, so check the court's website and confirm with counsel.

Frequently Asked Questions

Can I get a copy of the police report in my own criminal case?

Yes, through your lawyer. The arrest report is produced to the defense at or shortly after arraignment under Penal Code section 1054.1, and your attorney will review it with you. Counsel may not give you the addresses or phone numbers of victims or witnesses under Penal Code section 1054.2, so copies provided to clients are often redacted. If no case has been filed yet, the agency may release a report through a records request, though many agencies withhold reports while a case is under investigation.

How long does the prosecutor have to turn over evidence in California?

At least 30 days before trial, and immediately for anything received later. Penal Code section 1054.7 sets the deadline, and the court can shorten or delay it for good cause such as witness safety. Brady material must be disclosed in time for the defense to use it effectively. In practice the first report arrives at arraignment and supplemental discovery follows through the pretrial conferences, and the defense must send an informal request under Penal Code section 1054.5 before it can move to compel.

What happens if the prosecutor hides evidence?

The court can sanction the prosecution, and a conviction can be reversed. Under Penal Code section 1054.5 the judge can order disclosure, continue the trial, instruct the jury about the violation, exclude the withheld evidence or witness, or hold the prosecutor in contempt. A Brady violation, meaning the suppression of favorable, material evidence, violates due process under Brady v. Maryland and can result in a new trial or dismissal even after conviction. The defense has to document its requests to preserve these remedies.

Does the defense have to show the prosecutor its evidence?

Yes, for witnesses and evidence the defense intends to use at trial. Penal Code section 1054.3 requires disclosure of defense witness names and statements, expert reports, test results, and real evidence the defense plans to offer, at least 30 days before trial. The defendant's own statements to counsel, attorney notes, and work product under Penal Code section 1054.6 are never disclosed, and investigation the defense does not plan to use stays private.

Can I get body camera footage of my arrest?

Yes, and it is one of the first things to request. Body-worn camera and dash camera footage held by the investigating agency is discoverable under Penal Code section 1054.1 as real evidence and as recorded statements, and the defense should request it in writing immediately after arraignment because retention periods vary by agency. Footage of incidents involving serious uses of force is separately available to the public under Penal Code section 832.7.

What is a Brady list?

A list of officers with sustained credibility or misconduct findings that prosecutors must track. Many district attorney offices maintain lists of peace officers whose personnel files contain information that may need to be disclosed under Brady v. Maryland, and People v. Superior Court (Johnson) describes how prosecutors must handle that information in light of the Pitchess procedure under Evidence Code section 1043. If the arresting officer in your case is on such a list, the defense is entitled to pursue the underlying records through a Pitchess motion.

Talk to a Criminal Defense Lawyer Who Pushes Discovery Early

Gramling Law Group defends misdemeanor and felony cases at the Riverside Hall of Justice, the San Bernardino Justice Center, the Rancho Cucamonga, Victorville, and Barstow courthouses, the Clara Shortridge Foltz Criminal Justice Center, and the Orange County justice centers, and across the Inland Empire, Los Angeles County, Orange County, and Southern California. Daniel Gramling, Esq. offers flat-fee criminal defense and limited-scope options that include preservation letters, discovery requests, Pitchess motions, and suppression motions, so the evidence is examined before any decision about a plea. Call (909) 654-4575 or contact us through this website for a consultation.

This article is educational and is not legal advice. Reading it does not create an attorney-client relationship. It addresses California law only.