Section 18170 Of Chapter 4. Gun Violence Restraining Order Issued After Notice And Hearing From California Penal Code >> Division 3.2. >> Title 2. >> Part 6. >> Chapter 4.

. (a) An immediate family member of a person or a law enforcement officer may request that a court, after notice and a hearing, issue a gun violence restraining order enjoining the subject of the petition from having in his or her custody or control, owning, purchasing, possessing, or receiving a firearm or ammunition for a period of one year.
  (b) For purposes of this subdivision, "immediate family member" has the same meaning as in paragraph (3) of subdivision (b) of Section 422.4.