A UCLA student who was shocked with a Taser by campus police after refusing to show his identification card sued the university, claiming his civil rights were violated. Mostafa Tabatabainejad, 23, alleges University of California, Los Angeles campus police officers used excessive force by repeatedly shocking him with the stun gun Nov. 14, according to the lawsuit filed Wednesday in federal court. Tabatabainejad refused to show his student ID to a security guard during a check at the Powell Library because he believed he was singled out based on his Middle Eastern appearance, the lawsuit said. He is Iranian-American. Tabatabainejad had agreed to show his card on the condition that the guard check the IDs of other students in the library, but the request was denied, according to the lawsuit.