California Code, Penal Code - PEN § 836.6

(a) It is unlawful for any person who is remanded by a magistrate or judge of any court in this state to the custody of a sheriff, marshal, or other police agency, to thereafter escape or attempt to escape from that custody.

(b) It is unlawful for any person who has been lawfully arrested by any peace officer and who knows, or by the exercise of reasonable care should have known, that he or she has been so arrested, to thereafter escape or attempt to escape from that peace officer.

(c) Any person who violates subdivision (a) or (b) is guilty of a misdemeanor, punishable by imprisonment in a county jail not to exceed one year.  However, if the escape or attempted escape is by force or violence, and the person proximately causes a peace officer serious bodily injury, the person shall be punished by imprisonment in the state prison for two, three, or four years, or by imprisonment in a county jail not to exceed one year.