Demon Possession

There are no proscribed methods in the Bible for detecting possession (that I know of). However, I think it would probably be fairly obvious. It just isn't reported on, at least not outside of the "sci-fi" reports alongside ghosts and mangy dogs. However, this article comes from, of all places, Saudi Arabia. Apparently a Saudi man has a "jinn" (genie, or demon) possessing his son. His son is chained in the basement for his protection. It might just be a trumped up article (since I cannot confirm the truth of it). I did find it interesting a major publication carried the story at all (and numerous other places have also picked it up). If true, I hope the Gospel is preached and the demon excised.