The prison service sector started out as the Prison Division (, "Mahleket Batei HaSohar") until it became a separate sector in 1974. It was originally responsible for maintaining the provisional military prison in Tel Aviv, until Prison Four was built. Various services were introduced into the sector with time, such as education in 1977 and "gahelet" in the 2000s, as programs for rehabilitation. Additionally, the Prison Six revolt in 1997 revolutionized the IDF's approach to military prisons, and many new measures were introduced, in order to improve the conditions of prisoners and jailors alike, as well as make it harder for prisoners to escape and stage further revolts.