California Code, Welfare and Institutions Code - WIC § 828

(a)(1) Except as provided in Sections 389, 781, 786, 827.9, and 827.95 of this code or Section 1203.45 of the Penal Code, any information gathered by a law enforcement agency, including the Department of Justice, relating to the taking of a minor into custody may be disclosed to another law enforcement agency, including a school district police or security department, or to any person or agency that has a legitimate need for the information for purposes of official disposition of a case. When the disposition of a taking into custody is available, it shall be included with any information disclosed.

(2) A court shall consider any information relating to the taking of a minor into custody, if the information is not contained in a record that has been sealed, for purposes of determining whether adjudications of commission of crimes as a juvenile warrant a finding that there are circumstances in aggravation pursuant to Section 1170 of the Penal Code or to deny probation.