 On leaving prison, Boulahrouf participated with his companions in the creation of the Special Organisation in which it was designated as responsible for the area encompassing Annaba, Skikda, Ain Beida.In 1948 he was arrested for the third time and imprisoned in Barbarossa where he undertook a hunger strike, demanding the political rights of Algerian nationalists.In 1949 he was appointed a member of the central committee of the Movement for the Triumph of Democratic Freedoms.