An Israeli court on Wednesday found the former Gaza head of a major US-based NGO guilty of embezzling millions of dollars to Hamas, amid “serious concerns” from the UN Human Rights Office over the trial’s fairness. The UN Human Rights Office on Tuesday had raised particular concern over the “lack of evidence” against Mohammed al-Halabi, who has been held by Israel for six years. Halabi was arrested by Israel in 2016 on allegations that he helped funnel millions of dollars meant for development to armed groups in Gaza, charges he and his supporters reject as impossible. He was first held for 50…