I think you may have passed the civil service exam. Generally, the initial training time for new police officers is 1-3 months, and they are all basic business knowledge. You can go to work after passing the exam. Dress for work means wearing a police uniform. Newly hired policemen have a one-year probation period. During the probation period, they wore a first-class police rank, that is, two arc-shaped thick bars without stars. After the probation period expires and the trainees pass the examination, they will be appointed and graded, and the Ministry can award the rank of superintendent.