In my area, its called "Bible Turning". You get a key, fix it in any chapter of the book of Job, then put a string through the key, then tie it to the Bible. Two people will wedge the key with each of their index fingers, then one of them says " Bible if it is .... that stole ...turn. If the thief 's name is mentioned, the Bible then turns.
***Warning*** The Bible shouldn't be allowed to fall, else each of the participants would go mad.