CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
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Opinion & Scientific Evidence
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Expert Testimony: Qualifications
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Experts Found Not Qualified-Examples
............In General
6 Cards On This Topic:
No abuse of discretion to exclude investigator's penalty testimony as he was not a psychologist and not qualified to offer expert opinion re psychological impact of D's upbringing on his behavior or how he would adjust to prison.
Trial court did not abuse its discretion in concluding psych professor and gang expert was not competent to testify concerning a genetic basis for D's drug and alcohol problems.
Expert testimony properly excluded where E lacked sufficient personal knowledge and had inadequate basis for formulating relevant expert opinion despite general qualifications.
Qualifications based solely upon previous observation without inquiry, analysis or experiment insufficient to qualify as expert.
Expert's conclusion properly stricken where based upon expert's faulty methodology or reasoning; court must determine that conclusion based upon scientific knowledge.
Expert may be qualified in one area, but unqualified in related area.