California Code, Labor Code - LAB § 244

(a) An individual is not required to exhaust administrative remedies or procedures in order to bring a civil action under any provision of this code, unless that section under which the action is brought expressly requires exhaustion of an administrative remedy. This subdivision shall not be construed to affect the requirements of Section 2699.3.

(b) Reporting or threatening to report an employee's, former employee's, or prospective employee's suspected citizenship or immigration status, or the suspected citizenship or immigration status of a family member of the employee, former employee, or prospective employee, to a federal, state, or local agency because the employee, former employee, or prospective employee exercises a right under the provisions of this code, the Government Code, or the Civil Code constitutes an adverse action for purposes of establishing a violation of an employee's, former employee's, or prospective employee's rights. As used in this subdivision, “family member” means a spouse, parent, sibling, child, uncle, aunt, niece, nephew, cousin, grandparent, or grandchild related by blood, adoption, marriage, or domestic partnership.