CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Opinion & Scientific Evidence
......Lay Opinion
.........Proper Subjects
............Measurmts: Distance; Speed; Ht.; Wt.
3 Cards On This Topic:

Lay P properly permitted to testify re speed of vehicles.

Witness who has had personal experience or knowledge of a sensation is competent to testify as to its force, although his answer is only opinion.

Eyewitness testimony about the speed of D's car was proper.