Section 171 Of Chapter 7. Other Offenses Against Public Justice From California Penal Code >> Title 7. >> Part 1. >> Chapter 7.

. Every person, not authorized by law, who, without the permission of the officer in charge of any reformatory in this State, communicates with any person detained therein, or brings therein or takes therefrom any letter, writing, literature, or reading matter to or from any person confined therein, is guilty of a misdemeanor.