Officers were dispatched to a report of a dispute between a BART system-service worker and a BART foreworker. Upon arrival, the officers spoke to the involved employees. The system-service worker said that, at approximately 1710 hrs., the foreworker poked him in the chest, 3-4 times, with two extended fingers. This occurred during an argument in room 101, with no witnesses present. The foreworker denied having touched the system-service worker. The system-service worker said that he was not injured, but wants the foreworker prosecuted for battery. An officer told both parties that he would prepare a police report and forward it to the distict-attorney’s office for review. A sergeant informed a BART manager of the situation. The manager responded to the scene and met with both employees.