If I go to the Chancery Office, or wherever it is I have to go to get permission for an exorcism, the first thing I’d have to have is a pretty substantial indication that your daughter’s condition isn’t a purely psychiatric problem, plus evidence that the Church would accept as signs of possession.” “Like what?” “I don’t know. I’ll have to go and look it up.” “Are you kidding? I thought you were supposed to be an expert.” “There aren’t any experts.
I've seen that (very fake) exorcism documentary. I know that super old priest was def around and learning all about exorcisms contemporary to this book.