California Codes, Code of Civil Procedure - CCP, Part 3 — Of Special Proceedings of a Civil Nature, Title 3 — Of Summary Proceedings, Chapter 4 — Summary Proceedings for Obtaining Possession of Real Property in Certain Cases, Section 1159
(a) Every person is guilty of a forcible entry who either:
(1) By breaking open doors, windows, or other parts of a house, or by any kind of violence or circumstance of terror enters upon or into any real property.
(2) Who, after entering peaceably upon real property, turns out by force, threats, or menacing conduct, the party in possession.
(b) For purposes of this section, “party in possession” means any person who hires real property and includes a boarder or lodger, except those persons whose occupancy is described in subdivision (b) of Section 1940 of the Civil Code.
Notes
Defines forcible entry to include violent or terror-inducing entry onto real property and peaceable entry followed by forcibly, threateningly, or menacingly ousting the person in possession. Defines “party in possession” as a person hiring the property, including a boarder or lodger, except occupants described by the referenced Civil Code provision.
Use as reference
Lexinter.net | California Code, Code of Civil Procedure - CCP § 1159 | https://laws.lexinter.net/codes/california/code-of-civil-procedure/part-3/title-3/chapter-4/section-1159