Who is Miss Graves from Post Office and what is their importance?

Miss Graves is employed in Post Office Personnel. Graves summons Henry Chinaski to explain the arrest record portion of his application, and she requires that a written explanation be provided within ten days if he hopes to remain employed. Irritated by the requirement, Henry produces a 42 page report, which Graves shares with colleagues. She continues Henry's case and allows him to continue working. When Henry cannot learn the content of CP1 for crucial tests, he phones Graves to ask about the status of his case; he does not want to invest time studying if he is to be terminated. Graves arranges for the test to be postponed.