Exorcism
In Catholic Christianity, exorcisms are performed in the name of Jesus Christ. A distinction is made between a formal exorcism, which can only be conducted by a priest during a baptism or with the permission of a bishop, and "prayers of deliverance" which can be said by anyone.
The Catholic rite for a formal exorcism, called a "Major Exorcism", is given in Section 11 of the Rituale Romanum. The Ritual lists guidelines for conducting an exorcism, and for determining when a formal exorcism is required. Priests are instructed to carefully determine that the nature of the affliction is not actually a psychological or physical illness before proceeding.
Exorcism in Christianity
In the Ethiopian Orthodox Tewahedo Church, priests intervene and perform exorcisms on behalf of those believed to be afflicted by demons or "buda". According to a 2010 Pew Research Center study, 74% of Christians in Ethiopia claim to have experienced or witnessed an exorcism. Demon-possessed persons are brought to a church or prayer meeting. Often, when an ill person has not responded to modern medical treatment, the affliction is attributed to demons. Unusual or especially perverse deeds, particularly when performed in public, are symptomatic of a demoniac. Superhuman strength – such as breaking one's bindings, as described in the New Testament accounts – along with glossolalia are observed in the afflicted. Amsalu Geleta, in a modern case study, relates elements that are common to Ethiopian Christian exorcisms: