The California Evidence Code is the statutory rulebook that decides what a judge or jury is allowed to hear in a California courtroom. Every item offered at trial, civil or criminal, has to clear several gates in sequence: it must be relevant, it must be authenticated, it must not run afoul of the hearsay rule or a privilege, and it must survive a judge’s discretion to exclude evidence whose prejudice outweighs its usefulness. The sections below walk through those gates in the order they actually come up.
Relevance and the Section 352 Balancing Test
Section 350 states the threshold rule: no evidence is admissible unless it is relevant.1California Legislative Information. California Code Evidence Code – Section 350 Section 210 defines relevant evidence as anything with a tendency to make a disputed fact more or less probable.2California Legislative Information. California Code EVID 210 – Relevant Evidence That is a low bar on purpose. A document does not need to decide the case; it only needs to nudge a contested issue.
Relevance alone does not guarantee admission. Section 352 gives the trial judge discretion to exclude relevant evidence when its probative value is substantially outweighed by the risk of unfair prejudice, confusion of the issues, or wasted time.3California Legislative Information. California Code Evidence Code 352 – Admitting and Excluding Evidence Graphic crime scene photos are the standard example: relevant to show how a victim died, but a judge can keep them out if their shock value would overwhelm the jury’s reasoning. Section 352 motions and objections run through nearly every contested trial, and judges have wide latitude.
Who Has to Prove What
Section 500 places the burden of proof on the party asserting a claim or defense. If you are the plaintiff in a civil case or the prosecution in a criminal case, you have to prove the facts your case depends on.4California Legislative Information. California Code EVID 500 – Burden of Proof
Section 115 defines the burden as the obligation to establish a required level of belief in the fact-finder. Three standards do most of the work. Preponderance of the evidence (more likely true than not) is the civil default. Clear and convincing proof applies to certain claims such as fraud. Proof beyond a reasonable doubt is required for a criminal conviction.5California Legislative Information. California Code EVID 115 – Burden of Proof The standard that applies shapes everything else about how a case is tried.
Hearsay and Its Main Exceptions
Section 1200 defines hearsay as an out-of-court statement offered to prove the truth of what the statement asserts, and declares it inadmissible except where the law provides otherwise.6California Legislative Information. California Code EVID 1200 – Hearsay Evidence The concern is simple. The person who made the statement was not under oath and cannot be cross-examined. The exceptions carved out in the Code identify situations where the circumstances supply a different reason to trust the statement.
Spontaneous Statements and Dying Declarations
Section 1240 admits a statement describing an event the speaker personally perceived, made spontaneously while the speaker was still under the stress of that event.7California Legislative Information. California Code Evidence Code 1240 – Spontaneous, Contemporaneous, and Dying Declarations The reasoning: someone reacting in the moment lacks the time to fabricate. Courts look at how much time passed, the speaker’s emotional state, and whether the statement was a genuine reaction rather than a thought-out account.
Section 1242 covers dying declarations. A statement about the cause and circumstances of the speaker’s death is admissible if the speaker made it based on personal knowledge and while believing death was imminent.8California Legislative Information. California Code Evidence Code 1242 – Evidence of a Statement Made by a Dying Person
Statements Against Interest
Section 1230 permits an out-of-court statement when the speaker is unavailable and the statement was so damaging to the speaker’s financial, legal, or social interests that no reasonable person would have made it unless believing it to be true. The exception reaches statements exposing the speaker to civil or criminal liability, statements that undercut the speaker’s own legal claims, and statements that would subject the speaker to community ridicule.9California Legislative Information. California Code Evidence Code 1230 – Declarations Against Interest
Business and Public Records
Section 1271 admits a record of an act or event if the record was made in the regular course of business, created at or near the time of the event, and the sources and method of preparation indicate trustworthiness. A qualified witness has to testify about the record’s identity and preparation.10California Legislative Information. California Code EVID 1271 – Business Records Section 1280 follows parallel logic for government records: prepared by a public employee within the scope of their duties, made near the time of the event, and prepared in a way that indicates reliability.11California Legislative Information. California Code EVID 1280 – Record of Act, Condition, or Event
Former Testimony
Section 1291 allows testimony from an earlier proceeding when the witness is now unavailable, if the party against whom the testimony is offered had the right and opportunity to cross-examine the witness in that earlier proceeding with a similar interest and motive.12California Legislative Information. California Code Evidence Code 1291 – Former Testimony The earlier cross-examination substitutes for the live safeguards.
Privileges That Keep Evidence Out
Privileges work differently from the rest of the Evidence Code. Most evidentiary rules exist to get reliable information in front of the fact-finder; privileges deliberately keep it out to protect confidential relationships.
Attorney-Client and Work Product
The attorney-client privilege, in Sections 950 through 962, protects confidential communications between a lawyer and client during the course of the legal relationship.13California Legislative Information. California Code Evidence Code 950 – Lawyer It covers any communication tied to the attorney’s professional role, not just formal legal advice.
The related work product doctrine is codified in Code of Civil Procedure Section 2018.030. An attorney’s written impressions, conclusions, opinions, and legal theories receive absolute protection from discovery. Other work product prepared in anticipation of litigation gets qualified protection and can be compelled only if the requesting party shows a need for the materials and an inability to obtain the equivalent information through other means.14California Legislative Information. California Code of Civil Procedure 2018.030
The Two Spousal Privileges
California recognizes two separate spousal privileges, and confusing them is a frequent mistake. The testimonial privilege under Sections 970 through 973 allows a married person to refuse to testify against their spouse in any proceeding; it belongs to the witness-spouse and applies only during the marriage.15California Legislative Information. California Code EVID 970 – Privilege Not to Testify Against Spouse The confidential marital communications privilege under Section 980 is narrower in subject but survives divorce. Either spouse can refuse to disclose, and can prevent others from disclosing, communications made in confidence during the marriage.16California Legislative Information. California Code Evidence Code 980 – Confidential Marital Communications
Medical, Mental Health, Clergy, and Press
The physician-patient privilege (Sections 990 through 1007) and psychotherapist-patient privilege (Sections 1010 through 1027) shield confidential medical and mental health communications from compelled disclosure.17California Legislative Information. California Code Evidence Code 990-1007 – Physician-Patient Privilege The clergy-penitent privilege (Sections 1030 through 1034) covers confessions and spiritual guidance given to religious leaders in the practice of their faith.18California Legislative Information. California Code EVID – Clergy Penitent Privileges Section 1070, the journalist’s shield, protects reporters from being held in contempt for refusing to reveal confidential sources or unpublished information gathered for news purposes.19California Legislative Information. California Code EVID 1070 – Immunity of Newsman From Citation for Contempt
Character Evidence and Prior Acts
Section 1101(a) sets a general rule that often surprises people: evidence of a person’s character cannot be used to prove they acted in accordance with that character on a particular occasion. A reputation for dishonesty is not admissible to prove the defendant committed fraud on a specific date.20California Legislative Information. California Code EVID 1101 – Evidence of Character to Prove Conduct
Section 1101(b) opens the door for a different purpose. Evidence of prior crimes or other acts is admissible when offered to show motive, opportunity, intent, preparation, plan, knowledge, identity, or the absence of mistake.20California Legislative Information. California Code EVID 1101 – Evidence of Character to Prove Conduct In People v. Ewoldt (1994), the California Supreme Court held that evidence of uncharged misconduct can show a common design or plan when the uncharged acts and the charged offense share enough common features to suggest the same scheme. A greater degree of similarity is required for plan than for intent, and all such evidence remains subject to Section 352 balancing.21Justia. People v. Ewoldt (1994) Sections 1108 and 1109 create separate exceptions for prior sexual offense and domestic violence evidence in prosecutions for those same categories of crime, even when the evidence speaks directly to propensity.
Witness Competency and Impeachment
A witness has to be competent before testifying. Section 701 disqualifies anyone who cannot express themselves well enough to be understood or who cannot grasp the duty to tell the truth.22California Legislative Information. California Code Evidence Code – Division 6 – Witnesses These challenges are uncommon but real.
Credibility is a different question. Section 780 lists the factors a jury may consider in evaluating a witness’s truthfulness, including bias, prior inconsistent statements, and reputation for honesty.23California Legislative Information. California Code Evidence Code 780 – Credibility Generally Section 788 permits the use of felony convictions to attack credibility.24California Legislative Information. California Code EVID 788 – Attacking or Supporting Credibility In People v. Castro (1985), the California Supreme Court clarified that only felonies necessarily involving moral turpitude qualify, and even then the trial judge keeps Section 352 discretion to exclude the conviction when its prejudicial impact outweighs its value for assessing credibility.25Stanford Supreme Court of California. People v. Castro
Section 770 governs impeachment through prior inconsistent statements. Outside evidence of an inconsistent statement is excluded unless the witness was given a chance during testimony to explain or deny it, or has not yet been excused and can still be recalled.26California Legislative Information. California Code Evidence Code 770 – Prior Inconsistent Statements
Expert Testimony and the Kelly Standard
Experts help the fact-finder understand technical or specialized issues that fall outside common experience. Section 801 limits expert opinion to subjects sufficiently beyond everyday knowledge and requires that the opinion rest on matter reasonably relied upon by experts in the field.27California Legislative Information. California Code EVID 801 – Opinion Testimony by Expert Witness Section 802 lets the expert describe the basis for the opinion on direct, including training and experience, and gives the court discretion to require that foundation before allowing the opinion itself.28California Legislative Information. California Code EVID 802 – Statement of Basis of Opinion Qualifying requires relevant knowledge, skill, experience, training, or education, and opposing counsel can challenge the credentials on voir dire.
Scientific evidence runs through a California-specific test. In People v. Kelly (1976), the California Supreme Court adopted the “general acceptance” standard originally from Frye v. United States (1923).29Justia. People v. Kelly A new scientific technique has to be generally accepted as reliable within the relevant scientific community before evidence derived from it comes in. California has not adopted the federal Daubert standard, which gives judges broader room to evaluate methodology using factors such as testability, peer review, and error rates. In practice, California courts put more weight on scientific consensus and are more cautious about novel techniques.
Authentication and Digital Evidence
Section 1400 requires authentication before any item is admitted. The party offering the evidence has to produce enough proof that the item is what they claim it to be.30California Legislative Information. California Code Evidence Code 1400 – Authentication of a Writing A signed contract might be authenticated through a witness identifying the signature. A photograph can be authenticated by someone who was present at the scene confirming it shows what they saw. Courts ask for reasonable proof, not certainty.
Digital evidence raises its own problems because electronic files can be altered without obvious traces. Section 1552 creates a presumption that a printed representation of computer information accurately reflects the underlying data, but this presumption affects only the burden of producing evidence. If the opposing party introduces any evidence of inaccuracy, the burden shifts back to the proponent to prove the printout is reliable.31California Legislative Information. California Code EVID 1552 – Printed Representation of Computer Information Social media posts, emails, and text messages often need additional steps such as metadata analysis or testimony from someone who can confirm authorship. In People v. Goldsmith (2014), the California Supreme Court addressed automated red-light camera footage and held that authentication does not require a witness with firsthand knowledge of the events captured; a witness who can explain how the system works and vouch for its reliability is enough.32Justia. People v. Goldsmith (2014)
Judicial Notice
Not every fact has to be proved through witnesses and exhibits. Section 452 lists categories of facts a court may judicially notice: federal and state laws, regulations, court records, facts so widely known within the court’s jurisdiction that they cannot reasonably be disputed, and facts that can be immediately verified from unquestionable sources.33California Legislative Information. California Code Evidence Code 452 – Judicial Notice Common examples: the day of the week a particular date fell on, published government interest rates, the text of a public statute.
Section 453 makes judicial notice mandatory when a party formally requests it, gives the opposing party enough notice to prepare a response, and supplies the court with sufficient information to act.34California Legislative Information. California Code Evidence Code 453 – Compulsory Judicial Notice Lawyers who skip judicial notice sometimes end up calling witnesses to prove facts a short written request would have established.
Criminal Cases and Proposition 8
One boundary matters for anyone comparing California’s rules to the federal ones. In criminal cases, Proposition 8 (1982) added the Truth-in-Evidence provision now in Article I, Section 28(f)(2) of the California Constitution. Relevant evidence cannot be excluded in a criminal proceeding except by a statute passed with a two-thirds vote of each legislative house.35California Legislative Information. California Constitution Article I Section 28 The provision expressly preserves privilege rules, hearsay rules, and Section 352 balancing, so most of what the Evidence Code does still operates. What it changes is the state-law version of the exclusionary rule: in criminal cases, California courts generally follow federal search-and-seizure standards rather than broader state-law protections, meaning evidence from an allegedly unlawful search comes in unless federal constitutional law requires suppression. The Fourth Amendment and Article I, Section 13 of the California Constitution both still prohibit unreasonable searches and seizures.36Justia. California Constitution Article I Section 13