Section 939.3 Of Article 4. Conduct Of Investigations From California Penal Code >> Title 4. >> Part 2. >> Chapter 3. >> Article 4.
939.3
. In any investigation or proceeding before a grand jury for
any felony offense when a person refuses to answer a question or
produce evidence of any other kind on the ground that he may be
incriminated thereby, proceedings may be had under Section 1324.