CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Foundation Issues
......Facts to be Redetermined by Jury
.........Personal Knowledge
3 Cards On This Topic:

Personal knowledge of witness re subject matter is preliminary fact which must first be established before introduction of proffered testimony.

Dismissal reversed where issue of whether machine which injured P was/ was not a power press within meaning of Labor Code was erroneously determined by judge rather than jury.

Personal knowledge also includes auditory perceptions.