Israeli security bodies started an internal investigation for its failure to predict the the sweeping victory of Hamas in the Palestinian legislative elections. According to the Israeli media, Israeli government sources criticized the Israeli security bodies for their failure to analyze the possibility of a Hamas victory and its vital impacts. The Israeli Haaretz daily reported that most of the intelligence analyses which were submitted to the Israeli cabinet indicated the possibility of a Hamas victory in the elections. It added that the military intelligence and internal security bodies predicted the slight victory of Fatah. The Israeli security bodies affirmed that their dependency on the Palestinian opinion polls before the elections was a major mistake especially that the polls failed to predict the victory of Hamas in the elections.