Exorcism
In Catholic practice the person performing the exorcism, known as an exorcist, is an ordained priest. The exorcist recites prayers according to the rubrics of the rite, and may make use of religious materials such as icons and sacramentals. The exorcist invokes God—specifically the Name of Jesus—as well as members of the Church Triumphant and the Archangel Michael to intervene with the exorcism. According to Catholic understanding, several weekly exorcisms over many years are sometimes required to expel a deeply entrenched demon.
Vince Lampert
Father Vince Lampert received his exorcism classroom training at the Pontifical North American College in Rome,Italy. He was in the same training class with Father Gary Thomas, the exorcist for San Jose, California US. Matt Baglio wrote the book, "The Rite: The Making of a Modern Exorcist" based on Father Gary Thomas, that later became the 2011 movie, The Rite. Father Lampert received practical experience, by assisting on over 40 exorcisms with Father Carmine de Filippis, who is the mentor for exorcists in the Diocese of Rome. While speaking to students about exorcism at Seton Hall University about his training, he told them he spent three months training to be an exorcist.