CALIFORNIA EVIDENCE: CIVIL AND CRIMINAL
...Foundation Issues
......Basic Rules & Definitions
.........Admissibility of Evidence
3 Cards On This Topic:

"Admissibility or inadmissibility of evidence" includes determination of competency or existence of privilege.

By ruling on admissibility of proffered evidence, court impliedly rules upon sufficiency of preliminary fact-no other finding necessary.

Evid. Code §400 et seq. does not limit right of party to introduce evidence which is relevant to weight or credibility.