A former detainee has provided a chilling testimony about the ordeal experienced by Dirar Abu Sisi during his incarceration in facilities run by the Israel Prison Service. According to the witness, Abu Sisi was subjected to extreme physical violence, his hands bound behind his back, repeatedly battered inside his cell and in special-units’ rooms. The source claims that such treatment was part of a deliberate strategy of intense mistreatment. This account aligns with broader documented practices of abuse in prisons holding Palestinians. 

The former detainee further described how, on one occasion, a prisoner fell dangerously ill and the authorities refused for hours to attend to the emergency calls. As a result, fellow inmates believed the man had died and shouted in alarm. The reaction from prison special-units was swift and brutal: they forced entry, deployed tear-gas and unleashed beatings throughout the cells. The testimony emphasises that no prisoner, whether elderly or unwell, is spared this treatment, particularly those from Gaza. This echoes wider findings of institutionalised neglect and humiliation. 

Abu Sisi is also said to have been held in near-total isolation. Television sets, newspapers and radios were confiscated; lawyers were prevented from contacting detainees freely; and communication with the outside world was effectively severed. Such conditions prolong not only physical suffering, but deep psychological erosion. Legal monitoring bodies have warned that Abu Sisi’s linguistic abilities started to decline as a result of his isolation.