Israel is facing mounting pressure to end its six-year detention of an aid worker, in a case that human rights groups and the UN have deemed “extremely unfair”. Mohammed El-Halabi, the former director of the US-based charity World Vision in Gaza, 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 days without access to a lawyer and has since attended more than 160 court sessions extending his detention. He remains in administrative det…