KLOETZEL, C.Z. The Way to the Wailing Wall [tourist's guide book]

"Since the beginning of the political tension between Jews and Arabs, the Mohammedans keep strict observation to ensure that nothing takes place at the Wailing Wall Services, save what is provided for in the Agreements. Thus, blowing of the Shofar at the end of the Yom Kippur Service is forbidden. The continual presence of a British policeman is a result of this regrettable transfer of political tension to the religious field" (p. 9)