IS runs a powerful intelligence apparatus that has plenty of security experience acquired by intelligence officers from the previous regime. The apparatus is similar to other intelligence agencies around the world, monitoring and identifying opponents then eliminating them to avoid opposition on its territory. The list of people to eliminate includes tribal sheikhs who have government connections, members of the Awakening movement who have fought against jihadist groups in the past, clerics who oppose IS's extremism and anyone suspected of delivering security information to governmental or other cooperating parties. The number of victims is high and punishments are extremely cruel. Activists who criticized IS’s measures were slaughtered in Mosal. Group executions occur. Everyone who opposes IS's religious measures, (eg.imposing the niqab on women) is punished. IS raises its flag on top of the victims’ homes to make examples of them, so that others know that someone has been punished.