Split of Haganah branch in Petah Tikva, establishing Etzel branch in Petah Tikva, imprisonment of Etzel members in detention camps in Mizra and Latrun, split of Etzel and establishment of Lehi, Etzel operations in Ramat Gan, robbery of residents by Etzel and Lehi members, blowing up British offices, ties between Hatzach (New Zionist Organization) and Etzel, printing Etzel notices, methods of secrecy, weapons storage, transporting explosives, Etzel members escapes from detention camp in Sudan.