2.1.9 [W3C-P3P1.0] Section 3.2.1, The POLICIES element
The specification states:
policies = `<POLICIES xmlns="http://www.w3.org/2002/01/P3Pv1"` [xml-lang] `>` [expiry] [dataschema] *policy "</POLICIES>"
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When multiple policies are specified, all their statements are merged into a single policy that is then presented to the user.