The son is an agent and a lawyer, and the father is a judicial cadre. Can I go to the trial site?

If the father works in the court and the son is a legal worker, he can't represent the case. The Judges Law clearly stipulates that Article 17 of the Judges Law shall not act as an agent ad litem or defender as a lawyer within two years after leaving the people's court. After leaving the people's court, a judge may not act as an agent ad litem or defender in the court of first instance. A judge's spouse or children may not act as agents ad litem or defenders in the court where they are located.