CCP 1633     

Art. 1633.  Oath or affirmation of witnesses; refusal to testify

A.  Before testifying, every witness shall be required to declare that he will testify truthfully, by oath or affirmation administered in a form calculated to awaken his conscience and impress his mind with his duty to do so.

B.  A witness who appears but refuses to testify without proper cause shall be considered in contempt of court.

Amended by Acts 1988, No. 515, §2, eff. Jan. 1, 1989.