Cal. Elec. Code § 18640

Any person working for the proponent or proponents of an initiative or referendum measure or recall petition who solicits signatures to qualify the measure or petition and accepts any payment therefor and who fails to surrender the measure or petition to the proponents thereof for filing is punishable by a fine not exceeding five thousand dollars ($5,000), or by imprisonment pursuant to subdivision (h) of Section 1170 of the Penal Code for 16 months or two or three years, or in a county jail not exceeding one year, or by both that fine and imprisonment.