Can the prison recruit nurses?

Prison nurses are generally treated as civil servants, and their workload varies according to different prisons, but they are not more tired than social hospitals and have less risk (because their illness is not complicated). But now the salary of civil servants is less (the truth), and when you work as a nurse in prison, your professional knowledge will be abolished. Maybe you'll feel good at first. After a few years, the gap will come out (whether it is treatment or professional knowledge). Not recommended (this is what I am looking for),