Cal. Civ. Code § 789.3
(b) In addition, a landlord shall not, with intent to terminate the occupancy under any lease or other tenancy or estate at will, however created, of property used by a tenant as his or her residence, willfully:
(3) Remove from the premises the tenant’s personal property, the furnishings, or any other items without the prior written consent of the tenant, except when done pursuant to the procedure set forth in Chapter 5 (commencing with Section 1980) of Title 5 of Part 4 of Division 3.
Nothing in this subdivision shall be construed to prevent the lawful eviction of a tenant by appropriate legal authorities, nor shall anything in this subdivision apply to occupancies defined by subdivision (b) of Section 1940.
(c) Any landlord who violates this section shall be liable to the tenant in a civil action for all of the following: