California Code, Penal Code - PEN § 1620

The Department of Justice shall provide mental health agencies providing treatment to patients pursuant to Sections 1600 to 1610, inclusive, or pursuant to Article 4 (commencing withSection 2960) of Chapter 7 of Title 1 of Part 3, with access to criminal histories of those mentally ill offenders who are receiving treatment and supervision. Treatment and supervision staff who have access to these criminal histories shall maintain the confidentiality of the information and shall sign a statement to be developed by the Department of Justice which informs them of this obligation.