Harvard University can't be a policeman. Graduates from Harvard University can't directly become policemen, because policemen are a profession that needs to pass specific training and examinations, and usually need to meet certain conditions such as physical fitness, education and work experience. Harvard University is a college of arts and sciences, which pays attention to general education and all-round development, and has nothing to do with the training and requirements of the police profession. Therefore, even if you received an excellent education at Harvard University, you can't become a policeman directly. You need to receive additional professional training and exams.