Cal. Educ. Code § 19332

In case of the neglect or refusal on the part of any officer or employee of the state to return a book for which he or she has given an order or a receipt or has in his or her possession, the State Librarian may purchase for the library a duplicate of the book, and notify the Controller of the purchase, together with the cost of the book. Upon the receipt of the notice from the department, the Controller shall deduct twice the cost of the duplicate book from the warrant for the salary of the officer or employee, and place the amount deducted in the General Fund.