According to the provisions of the "Criminal Procedure Law of the People's Republic of China", lawyers have the right to meet with the parties during the investigation stage, but family members do not. Therefore, when family members call to hire a donkey, they can entrust a lawyer to meet with them first to learn more about the situation.
When a defense lawyer goes to the detention center to meet with a criminal suspect or defendant in custody, the detention center will check several written materials: lawyer's practice certificate, law firm certificate, power of attorney or legal aid letter, and arrange them in a timely manner after checking meet.