The murder of people who were obviously not witches is not a form of enforcing law, unless one counts shariah.
I had a professor whose hobby was researching witch killings. He said most of them were in Germany (16th-17th centuries) and had trials associated with them. He thought the great motivator was that the women (majority were elderly women) were widows who owned property. Whether they were obviously not witches doesn’t really matter if there was an accusation which could be brought to trial.