California Codes, Code of Civil Procedure - CCP, Part 2 — Of Civil Actions, Title 6 — Of the Pleadings in Civil Actions, Chapter 2 — Pleadings Demanding Relief, Article 4 — Cross-Complaints, Section 428.20
When a person files a cross-complaint as authorized by Section 428.10, he may join any person as a cross-complainant or cross-defendant, whether or not such person is already a party to the action, if, had the cross-complaint been filed as an independent action, the joinder of that party would have been permitted by the statutes governing joinder of parties.
Notes
Allows a person filing an authorized cross-complaint to join any person as a cross-complainant or cross-defendant, whether or not already a party, when that joinder would have been permitted under joinder statutes if the cross-complaint had instead been filed as an independent action.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 428.20 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/part-2/title-6/chapter-2/article-4/section-428-20