When were the registration and examinations for Shanghai prison guard civil servants in previous years?

In March, prison guards were recruited by the School of Political Science and Law. They need to study in school and can obtain a bachelor's degree. December every year is the civil service recruitment examination. There are some differences in exam content. The admissions examinations for the School of Political Science and Law are examinations of practice, application and jurisprudence. The positions of prison guards in the Shanghai civil service are based on practical examination, application, and political and legal examinations.