JOINT BASE LEWIS-McCHORD, Wash. (AP) – The U.S. military has been criticized for its spotty record on convicting troops of killing civilians, but a hearing against Army Staff Sgt. Robert Bales involving a massacre in Afghanistan has shown that it isn’t like most cases.

Law experts say the case could test whether the military, aided by technology, is able to embark on a new era of accountability.

Bales faces 16 counts of premeditated murder and six counts of attempted murder. The preliminary hearing, which began Nov. 5 and is scheduled to end with closing arguments Tuesday, will determine whether he faces a court-martial. He could face the death penalty if convicted.