Detainee was offered water but he refused. He was taken to the latrine and exercised for circulation purposes for approximately 10 minutes. Detainee became very frustrated because he was not given the opportunity to explain himself to me. He wanted to explain who he was and I did not allow him to do so. I informed the detainee that the only things he could explain to me are the three questions that I posed to him at the onset of the interrogation. He attempted to tell me about himself anyway but I silenced him.