Jaber was born in al-Khalil in 1947. During his life, he was arrested over 20 times and spent around 15 years in interrogation cells and Israeli occupation prisons...
Not only did Israeli occupation forces attack him with physical torture; they also used psychological methods of torture in an attempt to extract a confession. He recalled one interrogation in 1985, where an Israeli interrogator showed him a forged document from the Red Cross declaring that his wife had died in childbirth. He had been under interrogation for a month and a half; he continued to refuse to confess or provide any information to the interrogators, and he later confirmed the health of his wife and newborn daughter...
During the 2000s, he was arrested by Israeli occupation forces on multiple occasions and frequently thrown in administrative detention, imprisonment without charge or trial. Indeed, he was last released from administrative detention on 21 May 2020, after eight months of imprisonment without charge or trial, at the age of 72. During his time behind bars, he participated in multiple hunger strikes and prisoners’ resistance actions, as active in struggle as always.