Talk:Touka Kirishima/@comment-178.17.145.209-20150412194651/@comment-25047329-20150414150044

Arima also knew that Kaneki was previously human. Kaneki's situation is complicated, so he's allowed to exist as a "victim of Kanou". It's a situation similar to Juuzou: he's dangerous and abnormal but his state of being is in no way his fault. His strength also makes him a powerful ally.

It's something that's not brought up often, but the CCG did in fact know for a long time that Kaneki was one of Kanou's experiments and were searching for him. They just didn't know where to find him or what identity he was taking a ghoul. It had probably been decided a long time ago by the higher ups to take him alive.