An anonymous witness called to report a person hitting a female in a vehicle in the parking lot. The witness reported that the victim left the area in the vehicle and the suspect went up to the platform. Trains were held out until officers were able to contact the suspect on the platform. The female suspect admitted to being in a physical altercation with her girlfriend in the parking lot. The officers were able to call the girlfriend and she returned to the station, where she gave a statement. Neither party had visible injures, and both declined medical attention, but the suspect was determined to be the primary aggressor. She was issued a prohibition order and booked into the Santa Rita Jail for domestic violence. The victim declined an EPO or any further police assistance and became uncooperative.