A Greek MEP at the centre of a graft scandal rocking the European Parliament and linked to Qatar protested her innocence in a Belgian court on Thursday and asked to be released from detention.Eva Kaili, 44, was "cooperating in an active manner" with the Belgian federal prosecutor's investigation and was requesting to be released under electronic surveillance, her lawyer, Andre Risopoulos, said outside the Brussels courtroom.The judge, who was only deciding custody terms and not weighing the case itself, was expected to give a decision later in the day.