California Code, Welfare and Institutions Code - WIC § 208

(a) When any person under 18 years of age is detained in or sentenced to an adult facility, including a jail or other facility established for the purpose of confinement of adults, it shall be unlawful to permit that person to come or remain in contact with adults confined there.

(b) A person who is a ward or dependent child of the juvenile court who is detained in or committed to any state hospital or other state facility shall not be permitted to come or remain in contact with any adult person who has been committed to any state hospital or other state facility as a mentally disordered sex offender under the provisions of Article 1 (commencing with Section 6300) of Chapter 2 of Part 2 of Division 6, or with any adult person who has been charged in an accusatory pleading with the commission of any sex offense for which registration of the convicted offender is required under Section 290 of the Penal Code and who has been committed to any state hospital or other state facility pursuant to Section 1026 or 1370 of the Penal Code.

(c) As used in this section, “contact” does not include participation in supervised group therapy or other supervised treatment activities, participation in work furlough programs, or participation in hospital recreational activities which are directly supervised by employees of the hospital, so long as living arrangements are strictly segregated and all precautions are taken to prevent unauthorized associations.

(d) This section shall be operative January 1, 1998.