[pep541] Cover legal matters

pep-0541.txt

@@ -183,7 +183,7 @@ is considered invalid and will be removed from the Index:
 * project does not conform to Terms of Use;
 * project is malware (designed to exploit or harm systems or users);
 * project contains illegal content;
-* project violates copyright or licenses;
+* project violates copyright, trademarks, patents, or licenses;
 * project is name squatting (package has no functionality or is
   empty);
 * project name, description, or content violates the Code of Conduct;
@@ -191,8 +191,30 @@ is considered invalid and will be removed from the Index:
 * project is abusing the Package Index for purposes it was not
   intended.
 
-If you find a project that might be considered invalid, create
+The Package Index maintainers pre-emptively declare certain package
-a support request [7]_.
+names as unavailable for security reasons.
+
+If you find a project that you think might be considered invalid, create
+a support request [7]_.  Maintainers of the Package Index will review
+the case.
+
+
+The role of the Python Software Foundation
+------------------------------------------
+
+The Python Software Foundation [8]_ is the non-profit legal entity that
+provides the Package Index as a community service.
+
+The Package Index maintainers can escalate issues covered by this
+document for resolution by the PSF Board if the matter is not clear
+enough.  Some decisions *require* additional judgement by the Board,
+especially in cases of Code of Conduct violations or legal claims.
+Decisions made by the Board are published as Resolutions [9]_.
+
+The Board has the final say in any disputes covered by this document and
+can decide to reassign or remove a project from the Package Index after
+careful consideration even when not all requirements listed
+here are met.
 
 
 Prior art
@@ -259,6 +281,12 @@ References
 .. [7] PyPI Support Requests
    (https://sourceforge.net/p/pypi/support-requests/)
 
+.. [8] Python Software Foundation
+   (https://www.python.org/psf/)
+
+.. [9] PSF Board Resolutions
+   (https://www.python.org/psf/records/board/resolutions/)
+
 
 Copyright
 =========