You are probably going to need to obtain a biography of Mac Arthur to find a detail like that. But based on what I know about how staffs are managed at that level of authority, it is highly unlikely that Mac Arthur himself would conduct an interrogation of a prisoner, no matter how important, or even be present. His chief of intelligence (or whatever the term was at the time) might be there as an observer, but the interrogation itself would have been conducted by trained investigators, probably military officers who are also lawyers and members of the intelligence staff. I base this on how they handled high ranking Nazi and Japanese prisoners after the war. Since people like that rotated in and out of their positions, you can probably just make them up and no one will notice or care.
OK, thanks for the info, it will be very useful!
Hi, everybody.
I'm writing a fan fiction where certain historical characters appear, and I need some information about an important character in the military history of the United States.
In one part of my fanfic, Douglas MacArthur and some members of his cabinet appear while he was the Supreme Commander of the Allied Forces during the American occupation of Japan. This may sound a little absurd, but I would like to know if MacArthur had any kind of, so to speak, secretary or person who took care of his appointments or arranged his personal affairs, and who were the people in charge of intelligence matters, such as espionage or matters considered to be state secrets or highly classified information. This is because in one part of the story, MacArthur decides to interrogate the protagonist, who is accused of crimes against humanity, and the aforementioned historical character needs to talk to him to know more about his background, or in case this would not have been possible historically, who should have interrogated the character in Mac Arthur's place.
I have tried to search the information on Wikipedia, but I have not been able to find much, or it is too confusing to search meaningfully, so anyone who knows about U.S. military history during World War II would be very helpful.