California § 804 - If a witness testifying as an expert testifies that his opinion is based in whole
Full text of California Public Contract Code - PCC § 804 — If a witness testifying as an expert testifies that his opinion is based in whole, with citation guidance and answers to common questions.
§ 804. If a witness testifying as an expert testifies that his opinion is based in whole
(a) If a witness testifying as an expert testifies that his opinion is based in whole or in part upon the opinion or statement of another person, such other person may be called and examined by any adverse party as if under cross-examination concerning the opinion or statement. (b) This section is not applicable if the person upon whose opinion or statement the expert witness has relied is (1) a party, (2) a person identified with a party within the meaning of subdivision (d) of Section 776, or (3) a witness who has testified in the action concerning the subject matter of the opinion or statement upon which the expert witness has relied. (c) Nothing in this section makes admissible an expert opinion that is inadmissible because it is based in whole or in part on the opinion or statement of another person. (d) An expert opinion otherwise admissible is not made inadmissible by this section because it is based on the opinion or statement of a person who is unavailable for examination pursuant to this section.
Source: official California text · Last verified 2026-08-27
Frequently Asked Questions About California § 804
What does Public Contract Code - PCC § 804 cover?
Section 804 ("If a witness testifying as an expert testifies that his opinion is based in whole") is part of the Public Contract Code - PCC, the codified statutory law of California. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.
How do I cite California § 804?
A common citation format is "Public Contract Code - PCC § 804" (California). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.
Is this the official text of California law?
No. This page is for research and education and may not include the most recent amendments. For official current law, check the California official source linked on this page or consult a licensed California attorney.
How does California § 804 apply to my situation?
Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in California can advise on how this section applies to you. Contact your state or local bar association for a referral.
Sources & Verification
Not legal advice. Verify against the official source and consult a licensed attorney in California.