Legal analysis: In general, the success rate of innocent defense is extremely low. If you can hire a professional lawyer to intervene in the defense as soon as possible within 37 days from criminal detention to examination and approval of arrest, the probability is about 10%; In the stage of examination and prosecution, the probability of letting the procuratorate make a decision not to prosecute is 2%; If it comes to the trial stage of the court, the possibility of letting the court make an acquittal is five in ten thousand. In most innocent defense cases, the defendant is accused of being guilty because the public prosecutor has sufficient evidence, which is both sufficient and difficult to refute, so the lawyer can't rashly agree to the defendant's innocent defense.
Legal basis: Criminal Procedure Law of People's Republic of China (PRC).
Article 37 The duty of a defender is to present materials and opinions on whether a criminal suspect or defendant is innocent, light or relieved of criminal responsibility according to facts and laws, and to safeguard the litigation rights and other legitimate rights and interests of the criminal suspect or defendant.
Article 38 A defense lawyer may provide legal aid to a criminal suspect during investigation. Acting as an agent for complaints and accusations; Apply for changing compulsory measures; Ask the investigation organ about the crimes and cases suspected by the criminal suspect, and put forward opinions.