The only regular police school in Xi 'an is Shaanxi Police Vocational College, which has been listed as a public security college. Xi 'an's public security major can take the public security entrance examination and join the police, and the enrollment rate is very high. Although Gansu politics and law also has a public security major, it is not a public security college, so it can't take the public security joint exam, but can only take part in social police recruitment. The competition is fierce and the enrollment rate is low.