I don't know about the various denominations represented here, but mine has official guidelines on exorcism. They start on p. 206 [210] for anyone interested
http://www.methodist.org.uk/downloads/Faith_and_Order_Statements_Vol1_0409.pdf
I came across this sermon from Methodist Central Hall and wondered what people's thoughts were.
http://www.methodist-central-hall.org.uk/sermons/MartinTurnerSermons/ExorcismIn2006.pdf
http://www.methodist.org.uk/downloads/Faith_and_Order_Statements_Vol1_0409.pdf
I came across this sermon from Methodist Central Hall and wondered what people's thoughts were.
http://www.methodist-central-hall.org.uk/sermons/MartinTurnerSermons/ExorcismIn2006.pdf