Can teachers take the prison police exam?

The prison guard exam is now included in the civil service exam, which generally depends on your major in university. If you major in criminal investigation, there is no problem. If you major in vocal music, dance and psychology, it is still possible to pass the examination. My cousin is a prison guard in a prison in Jinan who studied psychology this year, and he passed the exam successfully. I paid special attention to this aspect when he applied for the exam.