At any time after the issuance of summons, any party to the action may take depositions in conformity to law upon notice to the adverse party sought to be bound by such depositions and who has appeared in the action and upon notice filed with the clerk. The depositions may be used by any party against any other party giving or receiving the notice, subject to all just exceptions.
Source:
Section 751.18, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CCP§ionNum=751.18..