legal ground
Article 16 of the Criminal Procedure Law shall not be investigated for criminal responsibility under any of the following circumstances. If the investigation has been concluded, the case shall be dismissed, or no prosecution shall be instituted, or the trial shall be terminated, or the case shall be declared innocent: (1) If the circumstances are obviously minor and the harm is not great, it shall not be considered as a crime; (two) the crime has passed the limitation period; (3) Being exempted from punishment by an amnesty order; (4) Failing to tell or withdrawing a crime that should be dealt with only after being told according to the Criminal Law; (5) The criminal suspect or defendant dies; (six) other laws and regulations shall be exempted from criminal responsibility.