She would have been able to much more effectively questioned them had she Stilled them first, and quiet honestly none of the AS she captured matter enough in the AS system to cause too much of a fuss had she broken tradition/law on this one ... especially since it's becoming widespread knowledge that Stilling can be Healed. Hell she could have had them Healed before carting them off to TV with confessions in hand.

“Three times under,” Yukiri muttered. “The toughest strongarm is broken by his own guilt, if nothing else, after two! What if she’s innocent? Light, this is like stealing sheep with the shepherd watching!” Even shaking, she managed to appear regal, but she always sounded like what she had been, a village woman. She glared around at the rest of them in a sickly fashion. “The law forbids using the Chair on initiates. We’ll all be unchaired! And if being thrown out of the Hall isn’t enough, we’ll probably be exiled. And birched before we go, just to drop salt in our tea! Burn me, if we’re wrong, we could all be stilled!”

Seaine shuddered. They would escape that last, if their suspicions proved right. No, not suspicions; certainties. They had to be right! But even if they were, Yukiri was correct about the rest. Tower law seldom allowed for necessity, or any supposed higher good. If they were right, though, the price was worth paying. Please, the Light send they were right!”"