If an employer attempts to request documents which are not ordinarily required for employment verification, and that request is for the purpose of retaliating against you, the employer has violated the law. Many employers do this to attempt to trip up employees and scare them into not taking a certain action. The same is true of rejecting documents for the purpose of retaliation. If the employer should accept, and otherwise would accept, your documents but chooses not to do so to get back at the immigrant worker, it is a violation of California law.