Interviewee was in AG approximately August 23, 2003 as a member of the Internal Reaction Force. Observed an MI yell at a detainee and hit the detainee in the back of the head with a closed fist. Also, observed another MI soldier put a detainee's neck in an arm lock, pulling the suspect to the ground, in the process the soldier twisted the detainee's neck left and right and the other soldier struck the detainee in the mid section. All the while, the soldiers were verbally abusing the detainees. Also, observed a soldier dragging a detainee by a choke hold, then throw the detainee against the wall, and then kicked the detainee in the mid-section. Also, noted the detainee was sandbagged and naked. Also, observed a dog handler allow their dog to enter a detainee's cell and be inches from the detainees' face, the dog also bit the detainee in his upper right arm. Stated that he saw a detainee later with multiple bite marks. Also, noted the detainee never resisted.