لجان المقاومة الشعبية
al-Qaisi was a member of the Popular Resistance Committees since their establishment in 2000. The Popular Resistance Committees were one of three organizations responsible for the capture of Gilad Shalit. Interviewed regarding Shalit's capture and imprisonment, al-Qaisi is said to have stated that "Israel has tried to pressure us by killing a large number of activists following the abduction, but the resistance and the Palestinians have held their ground".