California Code, Penal Code - PEN § 519

Fear, such as will constitute extortion, may be induced by a threat of any of the following:

1. To do an unlawful injury to the person or property of the individual threatened or of a third person.

2. To accuse the individual threatened, or a relative of his or her, or a member of his or her family, of a crime.

3. To expose, or to impute to him, her, or them a deformity, disgrace, or crime.

4. To expose a secret affecting him, her, or them.

5. To report his, her, or their immigration status or suspected immigration status.