I don’t know the answer to that, but I have known two exorcists in my lifetime. I will not disclose their identity or location. The first one is deceased and performed an exorcism in the mid-1970’s of my then best friend’s father who was possessed. The second one I have recently met because the Archbishop of the Diocese has assigned him to me. I knew right away that he was/is an exorcist. Of course he had not revealed anything to me, but through logic and discernment, I suspected from the beginning that he was an exorcist. We had talked on the phone a few times prior to our meeting. I could just sense that he was an exorcist somehow because I had known one 28 years ago or so, and it’s a feeling that one cannot forget. Immediately after we concluded our first meeting in person ( I don’t remember 99% of the meeting because I was in a dissociative state), but do remember that as the priest was saying his goodbye’s to us, and right before my wife and I got into the car, I turned around and bluntly asked him, " Are you an exorcist?" He immediately spoke the truth and said " yes". I suppose that we both have some kind of discernment. my wife said that during the meeting that he said I was experiencing oppression.