Legal analysis: you can't plead guilty, but you can plead not guilty. If a criminal suspect voluntarily pleads guilty and agrees to apply sentencing suggestions and procedures, he shall sign a confession and repentance in the presence of a defender or a lawyer on duty. But after pleading guilty, you have to plead guilty. When the suspect signs the confession and repentance, the defense lawyer can no longer plead not guilty. legal basis: article 174th of the criminal procedure law of People's Republic of China (PRC). If a criminal suspect voluntarily pleads guilty and agrees to apply sentencing suggestions and procedures, he shall sign a confession and repentance in the presence of a defender or a lawyer on duty.
If a criminal suspect pleads guilty and admits punishment, it is not necessary to sign a confession and repentance book under any of the following circumstances:
(1) The criminal suspect is a mental patient who is blind, deaf, dumb or has not completely lost the ability to recognize or control his own behavior;
(2) The legal representative or defender of the juvenile criminal suspect has any objection to the juvenile's confession and punishment;
(3) Other circumstances in which it is not necessary to sign a confession and repentance.