Re: Security or Marines?
Can you imagine what would it would be like if anyone of superior rank could come along and change a brig guard's orders?
I can, but who says Kirk and Sulu were doing anything of the sort? Kirk come to visit McCoy. If he wasn't supposed to be there, the guards should not have allowed him inside the cell and should instead have asked him to wait until McCoy was moved to the appropriate psychiatric facility.
"I've sworn an oath to serve and protect the United Federation of Planets- an oath I will fulfill with my dying breath- for in my heart, I remain a creature of duty. I am Romulan." --Captain Sran, USS Naptown