Two official investigations were subsequently conducted by the British and the League of Nations's Mandatory Commission. The former, The Shaw Report, concluded that the incident on 23 August consisted of an attack by Arabs on Jews, but rejected the view that the riots had been premeditated. Al-Husseini certainly played an energetic role in Muslim demonstrations from 1928 onwards, but could not be held responsible for the August riots, even if he had 'a share in the responsibility for the disturbances'. He had nonetheless collaborated from the 23rd. of that month in pacifying rioters and reestablishing order. The worst outbreaks occurred in areas, Hebron, Safed, Jaffa, and Haifa where his Arab political adversaries were dominant. The root cause of the violent outbreaks lay in the fear of territorial dispossession.