Talk:Hideyoshi Nagachika/@comment-27376148-20171108094507/@comment-10733658-20171115014005

^ Well, we know that Hide already passed himself off as a ghoul in the original series, when he tailed Yamori and located Aogiri's base in the 11th Ward. The only thing he needed to do was mask his human scent by wearing clothing that smelled like ghoul, and then have a mask that concealed his eyes completely from view.

C-rated is the absolute bottom of the barrel, the weakest of the weak among rated ghouls. So I think the only thing he needed to do to earn that Rating was simply to wear a mask and be spotted hanging around ghouls. Then whoever in the CCG had spotted and identified "Scarecrow" would simply have to assume it was a ghoul.

We saw from the Clown attacks that the CCG will assume anyone wearing a mask is a ghoul, especially if seen in the presence of ghouls.