Campaigner forced to renounce citizenship by Cairo authorities.
Key documents withheld from lawyers ahead of court hearing.
Rami Shaath was seized in sweep targeting activists, journalists and opposition.
But activists are demanding a full inquiry into covert trade with Israel.
Prominent human rights activist jailed by Mubarak has become apologist for Sisi.
Firm has long track record of breaking promises to end services to the Israeli military, police and prisons.
BDS Egypt launches campaign against Israeli-occupation profiteer with large presence in Egypt.