Section 400 Of Article 2. Preliminary Determinations On Admissibility Of Evidence From California Evidence Code >> Division 3. >> Chapter 4. >> Article 2.

. As used in this article, "preliminary fact" means a fact upon the existence or nonexistence of which depends the admissibility or inadmissibility of evidence. The phrase "the admissibility or inadmissibility of evidence" includes the qualification or disqualification of a person to be a witness and the existence or nonexistence of a privilege.