Protocols of special tribunal regarding Yaakov Hilevitz, who was accused of passing information and details about Etzel members to British Intelligence.
List of Etzel members found in Helivetz possession.
List of objects taken by British Intelligence from room of Hieivitz in home of Hadassah Klebanov.
Telegram from Eri Jabotinsky to Shmuel Merlin regarding Yaakov Hilevitz.