CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Opinion & Scientific Evidence
......Expert Testimony: Qualifications
.........Experts Found Not Qualified-Examples
............Police Officers
2 Cards On This Topic:

Police officer experienced in voiceprint analysis is unqualified to express competent opinion on whether voiceprint meets Frye test; test not met.

O's opinion on whether V impaled pre- or postmortem properly excluded as O lacked medical and pathology qualifications, and experience necessary to render opinion.