Zahar Omar Hamis Bin Hamdoun is a citizen of Yemen, held in extrajudicial detention in the United States Guantanamo Bay detainment camps, in Cuba.His Guantanamo Internment Serial Number is 576.The Department of Defense reports that he was born on November 13, 1979, in Ash-Shihr, Yemen. Zahir arrived at Guantanamo on May 5, 2002. He had a Periodic Review Board hearing on December 8, 2015.