Does anyone else find it funny that the guards are ordering around Kirk and Sulu as though they're nothing? Kirk was a flag officer, and Sulu was only a few steps away from a command of his own at this point in time. Those guys must have been suffering from some sort of complex.
But then they had a job which Kirk and Sula had no jurisdiction over.
They were there to guard the prisoner. Kirk and sulu were potential threats to that job.