JEDDAH, 1 December — Police here discovered on Tuesday that a watchman in a building where there was a fire practiced witchcraft. Firefighters who were called in to contain the fire alerted the police about his activities. The man, who was handed over to the Commission for the Promotion of Virtue and Prevention of Vice, said he had been practicing black magic since coming to the Kingdom nine months ago, Al-Madinah newspaper said in a report on Thursday.