Does Sasaki Know He's a Ghoul?

The knowledge that Ken Kaneki, the person, is a ghoul, is not common knowledge in the CCG, only a selected few know about this. They also don't know that Sasaki is Kaneki, and he doesn't know himself.

Is Sasaki Haise a ghoul?

Ken Kaneki (金木研, Kaneki Ken) is an one-eyed ghoul, who is currently living under the identity of Haise Sasaki (佐々木琲世, Sasaki Haise) — the First Rank Ghoul Investigator — also known as Eyepatch (眼帯, Gantai).

Does Kaneki become a ghoul investigator?

After fighting against the White Reaper of the CCG for the first time, Kaneki is completely annihilated and is then turned into a CCG investigator by Arima.