In disclosing information contained in a record to an individual, an agency shall not disclose any personal information relating to another individual which may be contained in the record. To comply with this section, an agency shall, in disclosing information, delete from disclosure such information as may be necessary. This section shall not be construed to authorize withholding the identities of sources except as provided in Sections 1798.38 and 1798.40.
Source:
Section 1798.42, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=CIV§ionNum=1798.42..