From the book The Rite: a reminder to those into false deliverance ministries.
"The earliest mention of the office of exorcist is perhaps in a letter written by Pope Corneliu (251-252) stating that in the Church of Rome there were fifty-two exorcists, lectors and doorkeepers. Around the fourth century a series of steps were taken to give the bishops more control over the nominating process. The Council of Laodicea in the middle of the fourth century established a canon prohibiting all individuals from performing an exorcism unless appointed by their bishop."
Anything else is disobedience and a falling into Protestantism. If you have been involved or gone to such prayer meetings, especially among charismatics, I highly suggest discussing this an orthodox priest, not a charismatic one.
