An armed Islamist organisation fighting on the rebel side has established sharia law in northern Syria, which has seen children whipped and adults executed in public, Amnesty International reports today. The Islamic State in Iraq and al-Sham (ISIS) control a large part of northern Syria, including the country's biggest city, Aleppo. ISIS are in charge of at least seven 'detention centres' in the area where children as young as eight have been detained, young teens have been flogged, and adults executed after 'trials' lasting just minutes.