The interrogation of the survivor got very intense right off the bat. That refugee insisted that someone had thrown out a "quad three" bomb that caused the explosion in the barracks.
But how could anyone believe that? After the soldiers in charge of the interrogation finished, they felt their intelligence had been insulted and became even more aggressive with the questioning.
Slowly, confusion started setting in and the refugee admitted to being a spy.
Most people in this world would not be able to endure an interrogation where they would force a confession from the suspect. The Public Order Division was actually the department that specialized in this area. According to them, unless one had the belief, no one would be tough enough to withstand the use of torture and force.