Where Can I Find Details About Exceptions Added To Our Policy

SEPM Version: 12.1.6 RU6 MP5

Server 2008 R2 SP1

SQL Backend

Is there a file stored on the server somewhere that will actually provide details on what was added and the admin ID that actually added the exception?  We do have limited admins who can edit the exceptions but "apparently no one made this particular change:" 

For example, if I am going through the list of exceptions and see one that is questionable, I would like to go to that admin and get some details. 

Thanks