1. First, apply directly to the prison. You can call in advance to confirm whether there is a video conference and how to go through the relevant meeting procedures.

2. Secondly, you can contact the judicial bureau where the prison is located and ask how to deal with it.

3. If there is a video interview in the prison, the prisoner will write an application in the prison and give it to the captain of the prison. After the captain in charge of the prison signs, he will get the signature of the prison brigade and then send it to the prison management department for signature.