Because the client may be sentenced to death, according to the provisions of the Criminal Procedure Law, he must have a lawyer to defend him. If he has no money or cannot find a suitable lawyer, the court can appoint a lawyer for the client under the provisions of "Legal Aid". Therefore, lawyers do not necessarily have to accept the commission.
In addition, a commission made by an intermittent mentally ill person while he is sane is valid even if the person is later sent for treatment for mental illness, as long as the commission is normal at the time.