Can the police go back after they resign?

The police can't go back to work after resigning. The police are civil servants, and there are very strict procedures for testing civil servants. Once you pass the public examination and become a civil servant, you will no longer have the status of a civil servant after resigning. At this time, if you want to go back to being a policeman, you can only take the civil service exam again and become a policeman after passing the exam.