CALCRIM No. 332

(A witness was/Witnesses were) allowed to testify as [an] expert[s] and to

give [an] opinion[s]. Y ou must consider the opinion[s], but you are not

required to accept (it/them) as true or correct. The meaning and

importance of any opinion are for you to decide. In evaluating the

believability of an expert witness, follow the instructions about the

believability of witnesses generally. In addition, consider the expert’s

knowledge, skill, experience, training, and education, the reasons the

expert gave for any opinion, and the facts or information on which the

expert relied in reaching that opinion. Y ou must decide whether

information on which the expert relied was true and accurate.

Y ou may disregard any opinion that you find unbelievable, unreasonable,

or unsupported by the evidence.

[An expert witness may be asked a hypothetical question. A hypothetical

question asks the witness to assume certain facts are true and to give an

opinion based on the assumed facts. It is up to you to decide whether an

assumed fact has been proved. If you conclude that an assumed fact is

not true, consider the effect of the expert’s reliance on that fact in

evaluating the expert’s opinion.]

[If the expert witnesses disagreed with one another, you should weigh

each opinion against the others. Y ou should examine the reasons given

for each opinion and the facts or other matters on which each witness

relied. Y ou may also compare the experts’ qualifications.]

New January 2006; Revised March 2018