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The May 1921 riots in and around Jaffa were the subject of a report published on 1 October 1921, determining the main cause as being due to Arab discontent about Jewish immigration and perceived pro-Jewish bias by Mandatory authorities. Its remit was expanded to include looking into any recent disturbances in Palestine so also considered the unpublished Palin report into the April 1920 Jerusalem riots. The White paper was intended to address the issues that had been identified.