Evidence about orders given to soldiers on Bloody Sunday is to be aired tomorrow, when the public inquiry resumes in Derry. The Saville Tribunal in the city's Guildhall is to hear details of Army communications, as counsel to the inquiry Christopher Clarke QC continues his opening submission. The Army has always maintained that paratroopers were carrying out an arrest operation, when they shot dead 13 men during the civil rights demonstration in the Bogside on 30 January, 1972.