Who applies the challenge system in criminal cases?

Legal analysis: the persons who apply the challenge system include: 1, judges. 2. Prosecutor. 3. investigator. 4. Clerks, translators and appraisers who participate in investigation, prosecution and trial activities. Judge: According to relevant laws and regulations, the term "judge" here should include assistant judges, judges, vice presidents, presidents, members of judicial committees, vice presidents, presidents and people's jurors who participate in collegiate panels; Procurators and procurators shall include assistant procurators, procurators, members of procuratorial committees, deputy procurators and procurators.

Legal basis: Criminal Procedure Law of People's Republic of China (PRC).

Article 29 A judge, prosecutor or investigator shall recuse himself under any of the following circumstances, and the parties and their legal representatives also have the right to ask him to recuse himself:

(1) Being a party to the case or a close relative of the party;

(2) He or his close relatives have an interest in the case;

(3) Having served as a witness, expert witness, defender or agent ad litem in this case;

(4) Having other relations with the parties to the case, which may affect the fair handling of the case.

Article 30 Judges, prosecutors and investigators shall not accept guests and gifts from the parties and their clients, and shall not meet the parties and their clients in violation of regulations.

Judges, prosecutors and investigators who violate the provisions of the preceding paragraph shall be investigated for legal responsibility according to law. The parties and their legal representatives have the right to ask them to withdraw.

Article 31 The withdrawal of judges, prosecutors and investigators shall be decided by the president, the procurator-general and the person in charge of the public security organ respectively. The withdrawal of the president is decided by the judicial Committee of our hospital; The withdrawal of the procurator-general and the person in charge of the public security organ shall be decided by the procuratorial committee of the people's procuratorate at the same level.

Investigators can't stop investigating the case before making a decision to withdraw the case.

The parties and their legal representatives may apply for reconsideration of the decision to reject the application for withdrawal.

Article 32 The provisions on withdrawal in this chapter shall apply to clerks, translators and expert witnesses.

Defenders and agents ad litem may apply for withdrawal and reconsideration in accordance with the provisions of this chapter.