Evid. Code, § 803 · Article 1. Expert and Other Opinion Testimony Generally
Evid. Code, § 803
Text — As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)
The court may, and upon objection shall, exclude testimony in the form of an opinion that is based in whole or in significant part on matter that is not a proper basis for such an opinion. In such case, the witness may, if there remains a proper basis for his opinion, then state his opinion after excluding from consideration the matter determined to be improper.
Notes and commentary — not statutory text
History
Enacted by Stats. 1965, Ch. 299.
Source of truth
- Edition
- As published in the Legislative Counsel's database, tables dated October 18, 2026 (pubinfo_2025.zip)
- Official file
- https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=EVID§ionNum=803.
- Text hash
- sha256 ce3ca9f850724458a67932bc94347f289f1bd2da2333a263e7a1505a968a1276
- Composed by
- compose_ca.py 2026-10-22: the Legislative Counsel's CAML content files read by a tokenizer (caml_readers.reader_a); an independent xml.etree reading (caml_readers.reader_b) agrees on every section
Cited by 2 provisions
Provisions in this library whose text cites Evid. Code, § 803. Each shows the citation as that text prints it.
Procedural information only. Not legal advice and not a substitute for the advice of an attorney. Confirm the current text with the official publisher before relying on it.