In the early 2280s, Turner was the administrator of the Starfleet Academy Command School. Although Cadet William Bearclaw had above average test scores, Turner rejected Bearclaw's candidacy to enter the school and become a command officer.
Turner's notes indicated that Bearclaw's behavioral problems in the cadet dormitories and tendencies toward xenophobic bigotry were the cause of the rejection, as well as Bearclaw's stubbornness. (ST comic: "Who's Who in Star Trek, Issue 1")
In 2285, Admiral Kirk went to Turner to request assignment as captain of the USS Enterprise. Turner stated that Starfleet had taken the ship away from Kirk twice and that was lesson enough even for him. (TOS comic: "The Wormhole Connection")
When reporter Lyndra Dean from the Proxima News Service published a story on Kirk's defense of the Federation against the Empire he had her brought to his office to find out where her information came from. However, she refused. (TOS - The Mirror Universe Saga comics: "... Promises to Keep", "The Tantalus Trap!", "Homecoming...")