CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Opinion & Scientific Evidence
......Lay Opinion
.........Proper Subjects
............Drugs: Identification of
3 Cards On This Topic:

Based upon lay witness' previous drug use, court properly allowed witnesses to identify drug used.

No abuse of discretion to allow minor, who had used heroin many times, to testify that drug used was heroin.

Officer's opinion that photograph showed D smoking marijuana, not violative of best evidence rule.