California statute
Cal. Penal Code § 1127b
Current through 2025–2026 Regular Session (leginfo weekly dump, 2026-07-12)
Part of Chapter 2: The Trial, California Penal Code.
Full text of Cal. Penal Code § 1127b
Statutory text current through the 2025–2026 Regular Session (leginfo weekly dump, 2026-07-12). This publication reproduces the official statutory text; it is not the official statutes of the State of California.
When, in any criminal trial or proceeding, the opinion of any expert witness is received in evidence, the court shall instruct the jury substantially as follows: Duly qualified experts may give their opinions on questions in controversy at a trial. To assist the jury in deciding such questions, the jury may consider the opinion with the reasons stated therefor, if any, by the expert who gives the opinion. The jury is not bound to accept the opinion of any expert as conclusive, but should give to it the weight to which they shall find it to be entitled. The jury may, however, disregard any such opinion, if it shall be found by them to be unreasonable. No further instruction on the subject of opinion evidence need be given.
Official sources
Legal terms used in this section
This reference is informational and is not legal advice.