The general judicial police are recruited by the examination of provincial government organs. Whether you can apply for a specific position depends on the specific recruitment brochure and job requirements.
The police have physical fitness tests, and women generally include 800-meter running, turn-back running and touching the heights.
Many positions in the court procuratorate require passing the judicial examination, but some do not. It depends on the recruitment requirements.
In recent years, the civil service examination is very popular, so the difficulty is still relatively large, and the probability of passing the customs is relatively small. But if you are very qualified for this position and do well in the exam, physical examination and interview, that is another matter.