A train operator was conducting a sweep of an out of service train at the Dublin/Pleasanton Station. A male subject (Mixon, Myron, 30 y/o, Oakland) was awakened and asked to asked o off-board the train. Mixon struck the train operator with a closed fist causing her to fall and strike her head. The train operator positively identified Mixon. The train operator was transported to a local hospital for medical treatment. The suspect was issued a Prohibition Order and booked at the Santa Rita Jail for battery upon the train operator. The battery appears unprovoked.