Why dont ghoul investigators also use masks? Because aren't some ghouls organized and have noledge about investatorsators so they can target ghoul investigator's family, right ?

It's not really something a user can answer since it's the decision the writer made ....


But maybe I'll guess like if both investigators and ghouls wear mask, there will be a lot of confusion..... Investigators might kill each other thinking that they are ghouls.... And also the ghouls will easily act like investigators and can escape........

well i guess its a choice since the ghoul investigators dont actually acknowledge themselves as ghouls......so yaaah hmmm but it would be cool to see them in their own mask