Burmese folk religion
These exorcists, or "ahletan hsaya", are said to possess powers that can fend away or challenge these evil demons. These exorcists were often seen as very holy, because they had to be to combat troublesome spirits. They attempt exorcisms by giving the nat offerings. As an interesting overlap with Buddhism, exorcisms can be performed by holding the Buddha up to the possessed person, in an effort to have the Nat flee. If the exorcist cannot banish this spirit alone, they often ask for the assistance of the nat-kadaw. Sorcerers, or "weikzas" also harnessed the power of these nats through many complex rituals, to gain their own supernatural powers.
Exorcism of Roland Doe
In the late 1940s, in the United States, priests of the Roman Catholic Church performed a series of exorcisms on an anonymous boy, documented under the pseudonym "Roland Doe" or "Robbie Mannheim". The 14-year-old boy (born circa 1935), was the alleged victim of demonic possession, and the events were recorded by the attending priest, Raymond Bishop. Subsequent supernatural claims surrounding the events were used as elements in the 1971 novel "The Exorcist" by William Peter Blatty and the 1973 film adaptation.