Sworn statement discussing interrogation procedures and techniques. States, "We used 'Mutt and Jeff' with one of them being assertive, but probably not more than 20% of the time." Continues, "Ninety-nine percent of the time if there was an injury it happened at objective. For good order and discipline, if a detainee was being uncooperative ... they were restrained on the ground." Discusses interpreters, and states, "We may have left detainees alone with an interpreter for a short period of time but it was not SOP or a matter of course." States that detainees were sometimes blindfolded during interrogations.