Such order can only be made on the motion of a party, upon affidavit showing the nature of the action or proceeding, the testimony expected from the witness, and its materiality.
Ca. Civ. Proc. Code § 1996
Such order can only be made on the motion of a party, upon affidavit showing the nature of the action or proceeding, the testimony expected from the witness, and its materiality.
Ca. Civ. Proc. Code § 1996