What is the test for access to a public record based upon the purpose for which the record is being requested?

on access to a public record based upon the purpose for which the record is being requested, if the record is otherwise subject to disclosure." "[T]he motive of the particular requester is irrelevant; the question instead is whether disclosure serves the public interest. 'The Public Records Act does not differentiate among those who seek access to public information.' [Citations.]" (County of Santa Clara v. Superior Court (2009) 170 Cal.App.4th 1301, 1324.)