FORT MEADE, Md. (AP) — Pfc. Bradley Manning remains on the list of prospective witnesses for a pretrial hearing on charges he gave classified documents to WikiLeaks.

The hearing at Fort Meade enters its third day Thursday. Manning’s lawyers argue that all charges should be dismissed due to what they called officials’ needlessly harsh treatment of the prisoner during his nine months of confinement in a Marine Corps brig in Quantico, Va.

Other potential witnesses include a military psychiatrist who examined Manning at Quantico, and the former commander of the confinement facility at Fort Leavenworth, Kansas, to which Manning was later moved.

Manning faces 22 counts, including aiding the enemy, which carries a maximum penalty of life in prison. He is charged with sending Wikileaks hundreds of thousands of classified war logs and diplomatic cables.