Section 4504.

For purposes of this chapter:

(a) A person is deemed confined in a "state prison" if he is confined in any of the prisons and institutions specified in Section 5003 by order made pursuant to law, including, but not limited to, commitments to the Department of Corrections or the Department of the Youth Authority, regardless of the purpose of such confinement and regardless of the validity of the order directing such confinement, until a judgment of a competent court setting aside such order becomes final.

(b) A person is deemed "confined in" a prison although, at the time of the offense, he is temporarily outside its walls or bounds for the purpose of serving on a work detail or for the purpose of confinement in a local correctional institution pending trial or for any other purpose for which a prisoner may be allowed temporarily outside the walls or bounds of the prison, but a prisoner who has been released on parole is not deemed "confined in" a prison for purposes of this chapter.

(Amended by Stats. 1969, Ch. 1010.)