The witch finders were not involved in the actual trials by gave investigators information needed to start their investigations. They would travel from town to town, area to area, as witchcraft was suspected. They would then spend their time snooping around villages and listening to local gossip.
The business of witch finding was a very well paid job and paid according to their success rate of finding evidence of witchcraft, so it was very unlikely for them to leave a place before having identified at least several witches and obtaining confessions through investigative methods. Once they were safely identified the witch finders would leave the area and move on to new pastures.
They were rather inclined to cast their sights upon relatively low social standing or people known to be at odds with the authorities. They were aware however that the wealthier the accused the more money they would likely to receive but they did not wish to antagonize local communities or authorities by accusing popular or distinguished residents.
